85420015882 has 16 divisors (see below), whose sum is σ = 133880895360. Its totient is φ = 40798050832.

The previous prime is 85420015843. The next prime is 85420015883. The reversal of 85420015882 is 28851002458.

It is a super-2 number, since 2×85420015882² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85420015883) 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, 1215457 + ... + 1283812.

It is an arithmetic number, because the mean of its divisors is an integer number (8367555960).

Almost surely, 2^85420015882 is an apocalyptic number.

85420015882 is a deficient number, since it is larger than the sum of its proper divisors (48460879478).

85420015882 is a wasteful number, since it uses less digits than its factorization.

85420015882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500037.

The product of its (nonzero) digits is 204800, while the sum is 43.

The spelling of 85420015882 in words is "eighty-five billion, four hundred twenty million, fifteen thousand, eight hundred eighty-two".