99219387925 has 12 divisors (see below), whose sum is σ = 140608047136. Its totient is φ = 68036151600.

The previous prime is 99219387899. The next prime is 99219387937. The reversal of 99219387925 is 52978391299.

It is not a de Polignac number, because 99219387925 - 2⁷ = 99219387797 is a prime.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 283483791 + ... + 283484140.

Almost surely, 2^99219387925 is an apocalyptic number.

It is an amenable number.

99219387925 is a deficient number, since it is larger than the sum of its proper divisors (41388659211).

99219387925 is a wasteful number, since it uses less digits than its factorization.

99219387925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566967948 (or 566967943 counting only the distinct ones).

The product of its digits is 22044960, while the sum is 64.

The spelling of 99219387925 in words is "ninety-nine billion, two hundred nineteen million, three hundred eighty-seven thousand, nine hundred twenty-five".