69640432792 has 64 divisors (see below), whose sum is σ = 159031019520. Its totient is φ = 27940818048.

The previous prime is 69640432789. The next prime is 69640432801. The reversal of 69640432792 is 29723404696.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514663 + ... + 635734.

It is an arithmetic number, because the mean of its divisors is an integer number (2484859680).

Almost surely, 2^69640432792 is an apocalyptic number.

It is an amenable number.

69640432792 is an abundant number, since it is smaller than the sum of its proper divisors (89390586728).

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

69640432792 is a wasteful number, since it uses less digits than its factorization.

69640432792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150480 (or 1150476 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 52.

The spelling of 69640432792 in words is "sixty-nine billion, six hundred forty million, four hundred thirty-two thousand, seven hundred ninety-two".