7864972137722 has 16 divisors (see below), whose sum is σ = 14275915813440. Its totient is φ = 3172425736128.

The previous prime is 7864972137703. The next prime is 7864972137733. The reversal of 7864972137722 is 2277312794687.

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, 16523050472 + ... + 16523050947.

It is an arithmetic number, because the mean of its divisors is an integer number (892244738340).

Almost surely, 2^{7864972137722} is an apocalyptic number.

7864972137722 is a deficient number, since it is larger than the sum of its proper divisors (6410943675718).

7864972137722 is a wasteful number, since it uses less digits than its factorization.

7864972137722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33046101445.

The product of its digits is 99574272, while the sum is 65.

The spelling of 7864972137722 in words is "seven trillion, eight hundred sixty-four billion, nine hundred seventy-two million, one hundred thirty-seven thousand, seven hundred twenty-two".