70518953872 has 40 divisors (see below), whose sum is σ = 144248530400. Its totient is φ = 33304545792.

The previous prime is 70518953851. The next prime is 70518953887. The reversal of 70518953872 is 27835981507.

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, 241722 + ... + 446617.

It is an arithmetic number, because the mean of its divisors is an integer number (3606213260).

Almost surely, 2^70518953872 is an apocalyptic number.

It is an amenable number.

70518953872 is an abundant number, since it is smaller than the sum of its proper divisors (73729576528).

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

70518953872 is a wasteful number, since it uses less digits than its factorization.

70518953872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688703 (or 688697 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 55.

The spelling of 70518953872 in words is "seventy billion, five hundred eighteen million, nine hundred fifty-three thousand, eight hundred seventy-two".