78826424466 has 192 divisors, whose sum is σ = 179887656960. Its totient is φ = 22981432320.

The previous prime is 78826424459. The next prime is 78826424471. The reversal of 78826424466 is 66442462887.

Its product of digits (24772608) is a multiple of the sum of its prime divisors (672).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 154865020 + ... + 154865528.

It is an arithmetic number, because the mean of its divisors is an integer number (936914880).

Almost surely, 2^78826424466 is an apocalyptic number.

78826424466 is an abundant number, since it is smaller than the sum of its proper divisors (101061232494).

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

78826424466 is a wasteful number, since it uses less digits than its factorization.

78826424466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 672 counting only the distinct ones).

The product of its digits is 24772608, while the sum is 57.

The spelling of 78826424466 in words is "seventy-eight billion, eight hundred twenty-six million, four hundred twenty-four thousand, four hundred sixty-six".