851403714816 has 72 divisors (see below), whose sum is σ = 2266130424544. Its totient is φ = 283781836800.

The previous prime is 851403714793. The next prime is 851403714829. The reversal of 851403714816 is 618417304158.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 15179175 + ... + 15235161.

Almost surely, 2^851403714816 is an apocalyptic number.

It is an amenable number.

851403714816 is an abundant number, since it is smaller than the sum of its proper divisors (1414726709728).

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

851403714816 is a wasteful number, since it uses less digits than its factorization.

851403714816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75807 (or 75793 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 851403714816 in words is "eight hundred fifty-one billion, four hundred three million, seven hundred fourteen thousand, eight hundred sixteen".