78889521114 has 48 divisors (see below), whose sum is σ = 174023059392. Its totient is φ = 25824033024.

The previous prime is 78889521097. The next prime is 78889521127. The reversal of 78889521114 is 41112598887.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91402 + ... + 407594.

It is an arithmetic number, because the mean of its divisors is an integer number (3625480404).

Almost surely, 2^78889521114 is an apocalyptic number.

78889521114 is an abundant number, since it is smaller than the sum of its proper divisors (95133538278).

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

78889521114 is a wasteful number, since it uses less digits than its factorization.

78889521114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316451 (or 316448 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 54.

The spelling of 78889521114 in words is "seventy-eight billion, eight hundred eighty-nine million, five hundred twenty-one thousand, one hundred fourteen".