99539253071 has 4 divisors (see below), whose sum is σ = 102229503192. Its totient is φ = 96849002952.

The previous prime is 99539253049. The next prime is 99539253097. The reversal of 99539253071 is 17035293599.

It is a happy number.

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 99539253071 - 2¹⁰ = 99539252047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99539253571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1345125005 + ... + 1345125078.

It is an arithmetic number, because the mean of its divisors is an integer number (25557375798).

Almost surely, 2^99539253071 is an apocalyptic number.

99539253071 is a deficient number, since it is larger than the sum of its proper divisors (2690250121).

99539253071 is a wasteful number, since it uses less digits than its factorization.

99539253071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2690250120.

The product of its (nonzero) digits is 2296350, while the sum is 53.

The spelling of 99539253071 in words is "ninety-nine billion, five hundred thirty-nine million, two hundred fifty-three thousand, seventy-one".