69490917888 has 320 divisors, whose sum is σ = 223631400960. Its totient is φ = 18745638912.

The previous prime is 69490917883. The next prime is 69490917907. The reversal of 69490917888 is 88871909496.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is not an unprimeable number, because it can be changed into a prime (69490917883) 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, 19534606 + ... + 19538162.

It is an arithmetic number, because the mean of its divisors is an integer number (698848128).

Almost surely, 2^69490917888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69490917888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111815700480).

69490917888 is an abundant number, since it is smaller than the sum of its proper divisors (154140483072).

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

69490917888 is a wasteful number, since it uses less digits than its factorization.

69490917888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687 (or 3671 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 69.

The spelling of 69490917888 in words is "sixty-nine billion, four hundred ninety million, nine hundred seventeen thousand, eight hundred eighty-eight".