85885162768 has 20 divisors (see below), whose sum is σ = 169130414668. Its totient is φ = 42238604160.

The previous prime is 85885162723. The next prime is 85885162787. The reversal of 85885162768 is 86726158858.

It can be written as a sum of positive squares in 2 ways, for example, as 36239975424 + 49645187344 = 190368^2 + 222812^2 .

It is a super-2 number, since 2×85885162768² (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, 43997571 + ... + 43999522.

Almost surely, 2^85885162768 is an apocalyptic number.

It is an amenable number.

85885162768 is a deficient number, since it is larger than the sum of its proper divisors (83245251900).

85885162768 is a wasteful number, since it uses less digits than its factorization.

85885162768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87997162 (or 87997156 counting only the distinct ones).

The product of its digits is 51609600, while the sum is 64.

The spelling of 85885162768 in words is "eighty-five billion, eight hundred eighty-five million, one hundred sixty-two thousand, seven hundred sixty-eight".