856670938795 has 16 divisors (see below), whose sum is σ = 1174958336448. Its totient is φ = 587383833600.

The previous prime is 856670938787. The next prime is 856670938813. The reversal of 856670938795 is 597839076658.

It is not a de Polignac number, because 856670938795 - 2³ = 856670938787 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 552834 + ... + 1420903.

It is an arithmetic number, because the mean of its divisors is an integer number (73434896028).

Almost surely, 2^856670938795 is an apocalyptic number.

856670938795 is a deficient number, since it is larger than the sum of its proper divisors (318287397653).

856670938795 is a wasteful number, since it uses less digits than its factorization.

856670938795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986150.

The product of its (nonzero) digits is 685843200, while the sum is 73.

The spelling of 856670938795 in words is "eight hundred fifty-six billion, six hundred seventy million, nine hundred thirty-eight thousand, seven hundred ninety-five".