69136212634440 has 128 divisors (see below), whose sum is σ = 250981881212160. Its totient is φ = 14873000361984.

The previous prime is 69136212634387. The next prime is 69136212634441. The reversal of 69136212634440 is 4443621263196.

It is a super-2 number, since 2×69136212634440² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (69136212634441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2420721457 + ... + 2420750016.

It is an arithmetic number, because the mean of its divisors is an integer number (1960795946970).

Almost surely, 2^{69136212634440} is an apocalyptic number.

69136212634440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69136212634440 is an abundant number, since it is smaller than the sum of its proper divisors (181845668577720).

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

69136212634440 is a wasteful number, since it uses less digits than its factorization.

69136212634440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4841471511 (or 4841471507 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 51.

The spelling of 69136212634440 in words is "sixty-nine trillion, one hundred thirty-six billion, two hundred twelve million, six hundred thirty-four thousand, four hundred forty".