85375138725 has 24 divisors (see below), whose sum is σ = 156837293120. Its totient is φ = 45533406960.

The previous prime is 85375138679. The next prime is 85375138733. The reversal of 85375138725 is 52783157358.

85375138725 is a `hidden beast` number, since 8 + 53 + 7 + 513 + 8 + 72 + 5 = 666.

It is not a de Polignac number, because 85375138725 - 2¹² = 85375134629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63240169 + ... + 63241518.

Almost surely, 2^85375138725 is an apocalyptic number.

It is an amenable number.

85375138725 is a deficient number, since it is larger than the sum of its proper divisors (71462154395).

85375138725 is a wasteful number, since it uses less digits than its factorization.

85375138725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126481706 (or 126481695 counting only the distinct ones).

The product of its digits is 7056000, while the sum is 54.

The spelling of 85375138725 in words is "eighty-five billion, three hundred seventy-five million, one hundred thirty-eight thousand, seven hundred twenty-five".