855792008520 has 32 divisors (see below), whose sum is σ = 2567376025920. Its totient is φ = 228211202240.

The previous prime is 855792008509. The next prime is 855792008543. The reversal of 855792008520 is 25800297558.

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 7 ways as a sum of consecutive naturals, for example, 3565799916 + ... + 3565800155.

It is an arithmetic number, because the mean of its divisors is an integer number (80230500810).

Almost surely, 2^855792008520 is an apocalyptic number.

It is an amenable number.

855792008520 is an abundant number, since it is smaller than the sum of its proper divisors (1711584017400).

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

855792008520 is a wasteful number, since it uses less digits than its factorization.

855792008520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7131600085 (or 7131600081 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 51.

The spelling of 855792008520 in words is "eight hundred fifty-five billion, seven hundred ninety-two million, eight thousand, five hundred twenty".