99534875831 has 4 divisors (see below), whose sum is σ = 103862479152. Its totient is φ = 95207272512.

The previous prime is 99534875771. The next prime is 99534875887. The reversal of 99534875831 is 13857843599.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99534875831 - 2¹⁰ = 99534874807 is a prime.

It is a super-3 number, since 3×99534875831³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99534875431) 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, 2163801626 + ... + 2163801671.

It is an arithmetic number, because the mean of its divisors is an integer number (25965619788).

Almost surely, 2^99534875831 is an apocalyptic number.

99534875831 is a deficient number, since it is larger than the sum of its proper divisors (4327603321).

99534875831 is a wasteful number, since it uses less digits than its factorization.

99534875831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4327603320.

The product of its digits is 32659200, while the sum is 62.

The spelling of 99534875831 in words is "ninety-nine billion, five hundred thirty-four million, eight hundred seventy-five thousand, eight hundred thirty-one".