85394085400 has 48 divisors (see below), whose sum is σ = 213813658800. Its totient is φ = 31530122880.

The previous prime is 85394085397. The next prime is 85394085401. The reversal of 85394085400 is 458049358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85394085401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16419340 + ... + 16424539.

It is an arithmetic number, because the mean of its divisors is an integer number (4454451225).

Almost surely, 2^85394085400 is an apocalyptic number.

It is an amenable number.

85394085400 is an abundant number, since it is smaller than the sum of its proper divisors (128419573400).

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

85394085400 is a wasteful number, since it uses less digits than its factorization.

85394085400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32843908 (or 32843899 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 85394085400 in words is "eighty-five billion, three hundred ninety-four million, eighty-five thousand, four hundred".