99109192730 has 32 divisors (see below), whose sum is σ = 184578823440. Its totient is φ = 38270292480.

The previous prime is 99109192709. The next prime is 99109192769. The reversal of 99109192730 is 3729190199.

It can be written as a sum of positive squares in 8 ways, for example, as 44630365081 + 54478827649 = 211259^2 + 233407^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1958912 + ... + 2008868.

Almost surely, 2^99109192730 is an apocalyptic number.

99109192730 is a deficient number, since it is larger than the sum of its proper divisors (85469630710).

99109192730 is a wasteful number, since it uses less digits than its factorization.

99109192730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56834.

The product of its (nonzero) digits is 275562, while the sum is 50.

The spelling of 99109192730 in words is "ninety-nine billion, one hundred nine million, one hundred ninety-two thousand, seven hundred thirty".