85037813128 has 16 divisors (see below), whose sum is σ = 159459079500. Its totient is φ = 42515391936.

The previous prime is 85037813111. The next prime is 85037813141. The reversal of 85037813128 is 82131873058.

It can be written as a sum of positive squares in 2 ways, for example, as 84985076484 + 52736644 = 291522^2 + 7262^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335043 + ... + 531346.

Almost surely, 2^85037813128 is an apocalyptic number.

It is an amenable number.

85037813128 is a deficient number, since it is larger than the sum of its proper divisors (74421266372).

85037813128 is a wasteful number, since it uses less digits than its factorization.

85037813128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878664 (or 878660 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 85037813128 in words is "eighty-five billion, thirty-seven million, eight hundred thirteen thousand, one hundred twenty-eight".