851393474496 has 224 divisors, whose sum is σ = 2659627863360. Its totient is φ = 266150707200.

The previous prime is 851393474471. The next prime is 851393474521. The reversal of 851393474496 is 694474393158.

851393474496 is a `hidden beast` number, since 8 + 5 + 13 + 93 + 47 + 4 + 496 = 666.

It is an interprime number because it is at equal distance from previous prime (851393474471) and next prime (851393474521).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8203086 + ... + 8306226.

Almost surely, 2^851393474496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 851393474496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1329813931680).

851393474496 is an abundant number, since it is smaller than the sum of its proper divisors (1808234388864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

851393474496 is a wasteful number, since it uses less digits than its factorization.

851393474496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103460 (or 103444 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 851393474496 in words is "eight hundred fifty-one billion, three hundred ninety-three million, four hundred seventy-four thousand, four hundred ninety-six".