851974094933 has 12 divisors (see below), whose sum is σ = 926165729580. Its totient is φ = 779087605632.

The previous prime is 851974094911. The next prime is 851974094953. The reversal of 851974094933 is 339490479158.

It can be written as a sum of positive squares in 2 ways, for example, as 63442526884 + 788531568049 = 251878^2 + 887993^2 .

It is not a de Polignac number, because 851974094933 - 2¹⁸ = 851973832789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851974094953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2713268 + ... + 3010941.

It is an arithmetic number, because the mean of its divisors is an integer number (77180477465).

Almost surely, 2^851974094933 is an apocalyptic number.

It is an amenable number.

851974094933 is a deficient number, since it is larger than the sum of its proper divisors (74191634647).

851974094933 is a wasteful number, since it uses less digits than its factorization.

851974094933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5724436 (or 5724329 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 62.

The spelling of 851974094933 in words is "eight hundred fifty-one billion, nine hundred seventy-four million, ninety-four thousand, nine hundred thirty-three".