85277940636 has 24 divisors (see below), whose sum is σ = 227407841920. Its totient is φ = 24365125872.

The previous prime is 85277940623. The next prime is 85277940679. The reversal of 85277940636 is 63604977258.

It is a congruent number.

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, 507606706 + ... + 507606873.

Almost surely, 2^85277940636 is an apocalyptic number.

It is an amenable number.

85277940636 is an abundant number, since it is smaller than the sum of its proper divisors (142129901284).

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

85277940636 is a wasteful number, since it uses less digits than its factorization.

85277940636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015213593 (or 1015213591 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 57.

The spelling of 85277940636 in words is "eighty-five billion, two hundred seventy-seven million, nine hundred forty thousand, six hundred thirty-six".