99308764138 has 8 divisors (see below), whose sum is σ = 149500920132. Its totient is φ = 49475124096.

The previous prime is 99308764133. The next prime is 99308764231. The reversal of 99308764138 is 83146780399.

It can be written as a sum of positive squares in 2 ways, for example, as 92840261809 + 6468502329 = 304697^2 + 80427^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (99308764133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89628295 + ... + 89629402.

Almost surely, 2^99308764138 is an apocalyptic number.

99308764138 is a deficient number, since it is larger than the sum of its proper divisors (50192155994).

99308764138 is a wasteful number, since it uses less digits than its factorization.

99308764138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179257976.

The product of its (nonzero) digits is 7838208, while the sum is 58.

The spelling of 99308764138 in words is "ninety-nine billion, three hundred eight million, seven hundred sixty-four thousand, one hundred thirty-eight".