85977417191372 has 48 divisors (see below), whose sum is σ = 175956608712192. Its totient is φ = 35989968954240.

The previous prime is 85977417191371. The next prime is 85977417191423. The reversal of 85977417191372 is 27319171477958.

It is a junction number, because it is equal to n+sod(n) for n = 85977417191296 and 85977417191305.

It is not an unprimeable number, because it can be changed into a prime (85977417191371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79047872 + ... + 80128152.

It is an arithmetic number, because the mean of its divisors is an integer number (3665762681504).

Almost surely, 2^{85977417191372} is an apocalyptic number.

It is an amenable number.

85977417191372 is an abundant number, since it is smaller than the sum of its proper divisors (89979191520820).

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

85977417191372 is a wasteful number, since it uses less digits than its factorization.

85977417191372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146438 (or 1146436 counting only the distinct ones).

The product of its digits is 186701760, while the sum is 71.

The spelling of 85977417191372 in words is "eighty-five trillion, nine hundred seventy-seven billion, four hundred seventeen million, one hundred ninety-one thousand, three hundred seventy-two".