69969845504 has 72 divisors (see below), whose sum is σ = 150541679232. Its totient is φ = 32265492480.

The previous prime is 69969845489. The next prime is 69969845581. The reversal of 69969845504 is 40554896996.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4061549 + ... + 4078739.

It is an arithmetic number, because the mean of its divisors is an integer number (2090856656).

Almost surely, 2^69969845504 is an apocalyptic number.

69969845504 is a gapful number since it is divisible by the number (64) 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 69969845504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75270839616).

69969845504 is an abundant number, since it is smaller than the sum of its proper divisors (80571833728).

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

69969845504 is a wasteful number, since it uses less digits than its factorization.

69969845504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18443 (or 18429 counting only the distinct ones).

The product of its (nonzero) digits is 83980800, while the sum is 65.

The spelling of 69969845504 in words is "sixty-nine billion, nine hundred sixty-nine million, eight hundred forty-five thousand, five hundred four".