843312042864 has 60 divisors (see below), whose sum is σ = 2441485308600. Its totient is φ = 271410771072.

The previous prime is 843312042803. The next prime is 843312042871. The reversal of 843312042864 is 468240213348.

It is a happy number.

843312042864 is a `hidden beast` number, since 8 + 43 + 3 + 120 + 428 + 64 = 666.

It is a super-2 number, since 2×843312042864² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100967094 + ... + 100975445.

It is an arithmetic number, because the mean of its divisors is an integer number (40691421810).

Almost surely, 2^843312042864 is an apocalyptic number.

It is an amenable number.

843312042864 is an abundant number, since it is smaller than the sum of its proper divisors (1598173265736).

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

843312042864 is a wasteful number, since it uses less digits than its factorization.

843312042864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201942582 (or 201942573 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 45.

The spelling of 843312042864 in words is "eight hundred forty-three billion, three hundred twelve million, forty-two thousand, eight hundred sixty-four".