78799887414 has 24 divisors (see below), whose sum is σ = 171676373232. Its totient is φ = 26121508560.

The previous prime is 78799887343. The next prime is 78799887431. The reversal of 78799887414 is 41478899787.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12090034 + ... + 12096549.

It is an arithmetic number, because the mean of its divisors is an integer number (7153182218).

Almost surely, 2^78799887414 is an apocalyptic number.

78799887414 is an abundant number, since it is smaller than the sum of its proper divisors (92876485818).

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

78799887414 is a wasteful number, since it uses less digits than its factorization.

78799887414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24186772 (or 24186769 counting only the distinct ones).

The product of its digits is 227598336, while the sum is 72.

The spelling of 78799887414 in words is "seventy-eight billion, seven hundred ninety-nine million, eight hundred eighty-seven thousand, four hundred fourteen".