70689053538 has 64 divisors (see below), whose sum is σ = 166544448000. Its totient is φ = 22162218192.

The previous prime is 70689053459. The next prime is 70689053549. The reversal of 70689053538 is 83535098607.

It is a happy number.

70689053538 is a `hidden beast` number, since 70 + 6 + 8 + 9 + 0 + 535 + 38 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105220 + ... + 390447.

It is an arithmetic number, because the mean of its divisors is an integer number (2602257000).

Almost surely, 2^70689053538 is an apocalyptic number.

70689053538 is an abundant number, since it is smaller than the sum of its proper divisors (95855394462).

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

70689053538 is a wasteful number, since it uses less digits than its factorization.

70689053538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495836 (or 495830 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 70689053538 in words is "seventy billion, six hundred eighty-nine million, fifty-three thousand, five hundred thirty-eight".