85907070520 has 64 divisors (see below), whose sum is σ = 193962600000. Its totient is φ = 34243642368.

The previous prime is 85907070407. The next prime is 85907070521. The reversal of 85907070520 is 2507070958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85907070521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14684556 + ... + 14690404.

It is an arithmetic number, because the mean of its divisors is an integer number (3030665625).

Almost surely, 2^85907070520 is an apocalyptic number.

It is an amenable number.

85907070520 is an abundant number, since it is smaller than the sum of its proper divisors (108055529480).

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

85907070520 is a wasteful number, since it uses less digits than its factorization.

85907070520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7072 (or 7068 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 85907070520 in words is "eighty-five billion, nine hundred seven million, seventy thousand, five hundred twenty".