855191672004 has 48 divisors (see below), whose sum is σ = 2014600896000. Its totient is φ = 282329853696.

The previous prime is 855191671987. The next prime is 855191672039. The reversal of 855191672004 is 400276191558.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3001624 + ... + 3274160.

It is an arithmetic number, because the mean of its divisors is an integer number (41970852000).

Almost surely, 2^855191672004 is an apocalyptic number.

It is an amenable number.

855191672004 is an abundant number, since it is smaller than the sum of its proper divisors (1159409223996).

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

855191672004 is a wasteful number, since it uses less digits than its factorization.

855191672004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275052 (or 275050 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 855191672004 in words is "eight hundred fifty-five billion, one hundred ninety-one million, six hundred seventy-two thousand, four".