856361319998 has 32 divisors (see below), whose sum is σ = 1368910951200. Its totient is φ = 400391962624.

The previous prime is 856361319971. The next prime is 856361320021. The reversal of 856361319998 is 899913163658.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3273113 + ... + 3525051.

It is an arithmetic number, because the mean of its divisors is an integer number (42778467225).

Almost surely, 2^856361319998 is an apocalyptic number.

856361319998 is a deficient number, since it is larger than the sum of its proper divisors (512549631202).

856361319998 is a wasteful number, since it uses less digits than its factorization.

856361319998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252604.

The product of its digits is 75582720, while the sum is 68.

The spelling of 856361319998 in words is "eight hundred fifty-six billion, three hundred sixty-one million, three hundred nineteen thousand, nine hundred ninety-eight".