85687516892 has 24 divisors (see below), whose sum is σ = 150351147072. Its totient is φ = 42730200000.

The previous prime is 85687516891. The next prime is 85687516903. The reversal of 85687516892 is 29861578658.

It is a super-2 number, since 2×85687516892² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85687516891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2303642 + ... + 2340542.

It is an arithmetic number, because the mean of its divisors is an integer number (6264631128).

Almost surely, 2^85687516892 is an apocalyptic number.

It is an amenable number.

85687516892 is a deficient number, since it is larger than the sum of its proper divisors (64663630180).

85687516892 is a wasteful number, since it uses less digits than its factorization.

85687516892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38429 (or 38427 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 65.

The spelling of 85687516892 in words is "eighty-five billion, six hundred eighty-seven million, five hundred sixteen thousand, eight hundred ninety-two".