78988922914 has 16 divisors (see below), whose sum is σ = 129428591040. Its totient is φ = 35855725360.

The previous prime is 78988922899. The next prime is 78988922917. The reversal of 78988922914 is 41922988987.

It is a super-2 number, since 2×78988922914² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78988922914.

It is not an unprimeable number, because it can be changed into a prime (78988922917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2399809 + ... + 2432500.

It is an arithmetic number, because the mean of its divisors is an integer number (8089286940).

Almost surely, 2^78988922914 is an apocalyptic number.

78988922914 is a deficient number, since it is larger than the sum of its proper divisors (50439668126).

78988922914 is a wasteful number, since it uses less digits than its factorization.

78988922914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4833065.

The product of its digits is 41803776, while the sum is 67.

The spelling of 78988922914 in words is "seventy-eight billion, nine hundred eighty-eight million, nine hundred twenty-two thousand, nine hundred fourteen".