78622843552 has 48 divisors (see below), whose sum is σ = 170075354400. Its totient is φ = 35480528640.

The previous prime is 78622843517. The next prime is 78622843633. The reversal of 78622843552 is 25534822687.

It is a self number, because there is not a number n which added to its sum of digits gives 78622843552.

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, 754527 + ... + 852382.

It is an arithmetic number, because the mean of its divisors is an integer number (3543236550).

Almost surely, 2^78622843552 is an apocalyptic number.

It is an amenable number.

78622843552 is an abundant number, since it is smaller than the sum of its proper divisors (91452510848).

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

78622843552 is a wasteful number, since it uses less digits than its factorization.

78622843552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607069 (or 1607061 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 52.

The spelling of 78622843552 in words is "seventy-eight billion, six hundred twenty-two million, eight hundred forty-three thousand, five hundred fifty-two".