851038929456 has 80 divisors (see below), whose sum is σ = 2204916090624. Its totient is φ = 282854931712.

The previous prime is 851038929443. The next prime is 851038929463. The reversal of 851038929456 is 654929830158.

It is a super-2 number, since 2×851038929456² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 851038929456.

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, 30628786 + ... + 30656558.

Almost surely, 2^851038929456 is an apocalyptic number.

It is an amenable number.

851038929456 is an abundant number, since it is smaller than the sum of its proper divisors (1353877161168).

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

851038929456 is a wasteful number, since it uses less digits than its factorization.

851038929456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29618 (or 29612 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 60.

The spelling of 851038929456 in words is "eight hundred fifty-one billion, thirty-eight million, nine hundred twenty-nine thousand, four hundred fifty-six".