85952221872 has 40 divisors (see below), whose sum is σ = 242228990400. Its totient is φ = 26046127680.

The previous prime is 85952221871. The next prime is 85952221933. The reversal of 85952221872 is 27812225958.

It is not an unprimeable number, because it can be changed into a prime (85952221871) 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, 81393622 + ... + 81394677.

It is an arithmetic number, because the mean of its divisors is an integer number (6055724760).

Almost surely, 2^85952221872 is an apocalyptic number.

It is an amenable number.

85952221872 is an abundant number, since it is smaller than the sum of its proper divisors (156276768528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85952221872 is a wasteful number, since it uses less digits than its factorization.

85952221872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162788321 (or 162788315 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 51.

The spelling of 85952221872 in words is "eighty-five billion, nine hundred fifty-two million, two hundred twenty-one thousand, eight hundred seventy-two".