7927972398369 has 40 divisors (see below), whose sum is σ = 12560523700032. Its totient is φ = 4972641204960.

The previous prime is 7927972398361. The next prime is 7927972398383. The reversal of 7927972398369 is 9638932797297.

7927972398369 is a `hidden beast` number, since 7 + 92 + 79 + 72 + 39 + 8 + 369 = 666.

It is not a de Polignac number, because 7927972398369 - 2³ = 7927972398361 is a prime.

It is a super-2 number, since 2×7927972398369² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is not an unprimeable number, because it can be changed into a prime (7927972398361) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 34767399 + ... + 34994684.

Almost surely, 2^{7927972398369} is an apocalyptic number.

It is an amenable number.

7927972398369 is a deficient number, since it is larger than the sum of its proper divisors (4632551301663).

7927972398369 is a wasteful number, since it uses less digits than its factorization.

7927972398369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69762179 (or 69762170 counting only the distinct ones).

The product of its digits is 3888730944, while the sum is 81.

The spelling of 7927972398369 in words is "seven trillion, nine hundred twenty-seven billion, nine hundred seventy-two million, three hundred ninety-eight thousand, three hundred sixty-nine".