78976668722 has 32 divisors (see below), whose sum is σ = 136822692864. Its totient is φ = 33489190800.

The previous prime is 78976668709. The next prime is 78976668731. The reversal of 78976668722 is 22786667987.

It is a super-2 number, since 2×78976668722² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1665197 + ... + 1711967.

It is an arithmetic number, because the mean of its divisors is an integer number (4275709152).

Almost surely, 2^78976668722 is an apocalyptic number.

78976668722 is a deficient number, since it is larger than the sum of its proper divisors (57846024142).

78976668722 is a wasteful number, since it uses less digits than its factorization.

78976668722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48054.

The product of its digits is 170698752, while the sum is 68.

The spelling of 78976668722 in words is "seventy-eight billion, nine hundred seventy-six million, six hundred sixty-eight thousand, seven hundred twenty-two".