99125634719 has 4 divisors (see below), whose sum is σ = 99141756240. Its totient is φ = 99109513200.

The previous prime is 99125634703. The next prime is 99125634721. The reversal of 99125634719 is 91743652199.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91743652199 = 89329 ⋅1027031.

It is a cyclic number.

It is not a de Polignac number, because 99125634719 - 2⁴ = 99125634703 is a prime.

It is a super-2 number, since 2×99125634719² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99125634119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8051534 + ... + 8063835.

It is an arithmetic number, because the mean of its divisors is an integer number (24785439060).

Almost surely, 2^99125634719 is an apocalyptic number.

99125634719 is a deficient number, since it is larger than the sum of its proper divisors (16121521).

99125634719 is a wasteful number, since it uses less digits than its factorization.

99125634719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16121520.

The product of its digits is 3674160, while the sum is 56.

The spelling of 99125634719 in words is "ninety-nine billion, one hundred twenty-five million, six hundred thirty-four thousand, seven hundred nineteen".