78522245634 has 16 divisors (see below), whose sum is σ = 179479418688. Its totient is φ = 22434927312.

The previous prime is 78522245587. The next prime is 78522245653. The reversal of 78522245634 is 43654222587.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 934788597 + ... + 934788680.

It is an arithmetic number, because the mean of its divisors is an integer number (11217463668).

Almost surely, 2^78522245634 is an apocalyptic number.

78522245634 is an abundant number, since it is smaller than the sum of its proper divisors (100957173054).

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

78522245634 is a wasteful number, since it uses less digits than its factorization.

78522245634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869577289.

The product of its digits is 3225600, while the sum is 48.

The spelling of 78522245634 in words is "seventy-eight billion, five hundred twenty-two million, two hundred forty-five thousand, six hundred thirty-four".