800856802125 has 96 divisors (see below), whose sum is σ = 1481991014400. Its totient is φ = 415936684800.

The previous prime is 800856802063. The next prime is 800856802127. The reversal of 800856802125 is 521208658008.

800856802125 is a `hidden beast` number, since 80 + 0 + 8 + 568 + 0 + 2 + 1 + 2 + 5 = 666.

800856802125 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 800856802125 - 2²⁶ = 800789693261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800856802127) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6426156 + ... + 6549594.

It is an arithmetic number, because the mean of its divisors is an integer number (15437406400).

Almost surely, 2^800856802125 is an apocalyptic number.

It is an amenable number.

800856802125 is a deficient number, since it is larger than the sum of its proper divisors (681134212275).

800856802125 is a wasteful number, since it uses less digits than its factorization.

800856802125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123612 (or 123599 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 45.

The spelling of 800856802125 in words is "eight hundred billion, eight hundred fifty-six million, eight hundred two thousand, one hundred twenty-five".