85437398179 has 12 divisors (see below), whose sum is σ = 99414303744. Its totient is φ = 73211466384.

The previous prime is 85437398177. The next prime is 85437398203. The reversal of 85437398179 is 97189373458.

It is not a de Polignac number, because 85437398179 - 2¹ = 85437398177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85437398179.

It is not an unprimeable number, because it can be changed into a prime (85437398177) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67752 + ... + 418885.

It is an arithmetic number, because the mean of its divisors is an integer number (8284525312).

Almost surely, 2^85437398179 is an apocalyptic number.

85437398179 is a deficient number, since it is larger than the sum of its proper divisors (13976905565).

85437398179 is a wasteful number, since it uses less digits than its factorization.

85437398179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490234 (or 490227 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 64.

The spelling of 85437398179 in words is "eighty-five billion, four hundred thirty-seven million, three hundred ninety-eight thousand, one hundred seventy-nine".