99811672923 has 8 divisors (see below), whose sum is σ = 133555833936. Its totient is φ = 66304313600.

The previous prime is 99811672907. The next prime is 99811672937. The reversal of 99811672923 is 32927611899.

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

It is a cyclic number.

It is not a de Polignac number, because 99811672923 - 2⁴ = 99811672907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99811670923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59199438 + ... + 59201123.

It is an arithmetic number, because the mean of its divisors is an integer number (16694479242).

Almost surely, 2^99811672923 is an apocalyptic number.

99811672923 is a deficient number, since it is larger than the sum of its proper divisors (33744161013).

99811672923 is a wasteful number, since it uses less digits than its factorization.

99811672923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118400845.

The product of its digits is 2939328, while the sum is 57.

The spelling of 99811672923 in words is "ninety-nine billion, eight hundred eleven million, six hundred seventy-two thousand, nine hundred twenty-three".