851670716684 has 24 divisors (see below), whose sum is σ = 1578145206960. Its totient is φ = 400773656576.

The previous prime is 851670716629. The next prime is 851670716747. The reversal of 851670716684 is 486617076158.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2203052 + ... + 2560620.

It is an arithmetic number, because the mean of its divisors is an integer number (65756050290).

Almost surely, 2^851670716684 is an apocalyptic number.

It is an amenable number.

851670716684 is a deficient number, since it is larger than the sum of its proper divisors (726474490276).

851670716684 is a wasteful number, since it uses less digits than its factorization.

851670716684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392617 (or 392615 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 59.

The spelling of 851670716684 in words is "eight hundred fifty-one billion, six hundred seventy million, seven hundred sixteen thousand, six hundred eighty-four".