85625121892 has 12 divisors (see below), whose sum is σ = 158658314220. Its totient is φ = 40294174976.

The previous prime is 85625121863. The next prime is 85625121941. The reversal of 85625121892 is 29812152658.

It can be written as a sum of positive squares in 2 ways, for example, as 80487959616 + 5137162276 = 283704^2 + 71674^2 .

It is a super-2 number, since 2×85625121892² (a number of 23 digits) contains 22 as substring.

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, 629596417 + ... + 629596552.

It is an arithmetic number, because the mean of its divisors is an integer number (13221526185).

Almost surely, 2^85625121892 is an apocalyptic number.

It is an amenable number.

85625121892 is a deficient number, since it is larger than the sum of its proper divisors (73033192328).

85625121892 is a wasteful number, since it uses less digits than its factorization.

85625121892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259192990 (or 1259192988 counting only the distinct ones).

The product of its digits is 691200, while the sum is 49.

The spelling of 85625121892 in words is "eighty-five billion, six hundred twenty-five million, one hundred twenty-one thousand, eight hundred ninety-two".