69649925752680 has 2048 divisors, whose sum is σ = 281331051724800. Its totient is φ = 13382559203328.

The previous prime is 69649925752579. The next prime is 69649925752681. The reversal of 69649925752680 is 8625752994696.

69649925752680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×69649925752680² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is a junction number, because it is equal to n+sod(n) for n = 69649925752596 and 69649925752605.

It is not an unprimeable number, because it can be changed into a prime (69649925752681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 189781813857 + ... + 189781814223.

It is an arithmetic number, because the mean of its divisors is an integer number (137368677600).

Almost surely, 2^{69649925752680} is an apocalyptic number.

69649925752680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69649925752680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140665525862400).

69649925752680 is an abundant number, since it is smaller than the sum of its proper divisors (211681125972120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69649925752680 is a wasteful number, since it uses less digits than its factorization.

69649925752680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 3527193600, while the sum is 78.

The spelling of 69649925752680 in words is "sixty-nine trillion, six hundred forty-nine billion, nine hundred twenty-five million, seven hundred fifty-two thousand, six hundred eighty".