99872333144591 has 8 divisors (see below), whose sum is σ = 115316508373920. Its totient is φ = 84722332681728.

The previous prime is 99872333144557. The next prime is 99872333144603. The reversal of 99872333144591 is 19544133327899.

It is a happy number.

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

It is not a de Polignac number, because 99872333144591 - 2⁶ = 99872333144527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99872333144501) 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, 73543690886 + ... + 73543692243.

It is an arithmetic number, because the mean of its divisors is an integer number (14414563546740).

Almost surely, 2^{99872333144591} is an apocalyptic number.

99872333144591 is a deficient number, since it is larger than the sum of its proper divisors (15444175229329).

99872333144591 is a wasteful number, since it uses less digits than its factorization.

99872333144591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147087383233.

The product of its digits is 176359680, while the sum is 68.

The spelling of 99872333144591 in words is "ninety-nine trillion, eight hundred seventy-two billion, three hundred thirty-three million, one hundred forty-four thousand, five hundred ninety-one".