85397639370 has 64 divisors (see below), whose sum is σ = 206353889280. Its totient is φ = 22617428288.

The previous prime is 85397639347. The next prime is 85397639399. The reversal of 85397639370 is 7393679358.

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, 6601729 + ... + 6614651.

It is an arithmetic number, because the mean of its divisors is an integer number (3224279520).

Almost surely, 2^85397639370 is an apocalyptic number.

85397639370 is an abundant number, since it is smaller than the sum of its proper divisors (120956249910).

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

85397639370 is a wasteful number, since it uses less digits than its factorization.

85397639370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14419.

The product of its (nonzero) digits is 25719120, while the sum is 60.

The spelling of 85397639370 in words is "eighty-five billion, three hundred ninety-seven million, six hundred thirty-nine thousand, three hundred seventy".