78743487922 has 16 divisors (see below), whose sum is σ = 129272707872. Its totient is φ = 35675903520.

The previous prime is 78743487877. The next prime is 78743487931. The reversal of 78743487922 is 22978434787.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5822643 + ... + 5836150.

It is an arithmetic number, because the mean of its divisors is an integer number (8079544242).

Almost surely, 2^78743487922 is an apocalyptic number.

78743487922 is a deficient number, since it is larger than the sum of its proper divisors (50529219950).

78743487922 is a wasteful number, since it uses less digits than its factorization.

78743487922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11659113.

The product of its digits is 37933056, while the sum is 61.

It can be divided in two parts, 78743 and 487922, that added together give a palindrome (566665).

The spelling of 78743487922 in words is "seventy-eight billion, seven hundred forty-three million, four hundred eighty-seven thousand, nine hundred twenty-two".