99572976388 has 12 divisors (see below), whose sum is σ = 178962241612. Its totient is φ = 48440907360.

The previous prime is 99572976383. The next prime is 99572976397. The reversal of 99572976388 is 88367927599.

It can be written as a sum of positive squares in 2 ways, for example, as 51242471424 + 48330504964 = 226368^2 + 219842^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 99572976388.

It is not an unprimeable number, because it can be changed into a prime (99572976383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336395043 + ... + 336395338.

Almost surely, 2^99572976388 is an apocalyptic number.

It is an amenable number.

99572976388 is a deficient number, since it is larger than the sum of its proper divisors (79389265224).

99572976388 is a wasteful number, since it uses less digits than its factorization.

99572976388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672790422 (or 672790420 counting only the distinct ones).

The product of its digits is 411505920, while the sum is 73.

The spelling of 99572976388 in words is "ninety-nine billion, five hundred seventy-two million, nine hundred seventy-six thousand, three hundred eighty-eight".