99819075725 has 12 divisors (see below), whose sum is σ = 125518975200. Its totient is φ = 78730537200.

The previous prime is 99819075703. The next prime is 99819075743. The reversal of 99819075725 is 52757091899.

It is not a de Polignac number, because 99819075725 - 2¹² = 99819071629 is a prime.

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, 28116275 + ... + 28119824.

It is an arithmetic number, because the mean of its divisors is an integer number (10459914600).

Almost surely, 2^99819075725 is an apocalyptic number.

It is an amenable number.

99819075725 is a deficient number, since it is larger than the sum of its proper divisors (25699899475).

99819075725 is a wasteful number, since it uses less digits than its factorization.

99819075725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56236180 (or 56236175 counting only the distinct ones).

The product of its (nonzero) digits is 14288400, while the sum is 62.

The spelling of 99819075725 in words is "ninety-nine billion, eight hundred nineteen million, seventy-five thousand, seven hundred twenty-five".