855679490331 has 16 divisors (see below), whose sum is σ = 1221308822400. Its totient is φ = 531269333568.

The previous prime is 855679490327. The next prime is 855679490363. The reversal of 855679490331 is 133094976558.

It is not a de Polignac number, because 855679490331 - 2² = 855679490327 is a prime.

It is a super-2 number, since 2×855679490331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (855679490321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127216306 + ... + 127223031.

It is an arithmetic number, because the mean of its divisors is an integer number (76331801400).

Almost surely, 2^855679490331 is an apocalyptic number.

855679490331 is a deficient number, since it is larger than the sum of its proper divisors (365629332069).

855679490331 is a wasteful number, since it uses less digits than its factorization.

855679490331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254439418.

The product of its (nonzero) digits is 24494400, while the sum is 60.

The spelling of 855679490331 in words is "eight hundred fifty-five billion, six hundred seventy-nine million, four hundred ninety thousand, three hundred thirty-one".