99517749347 has 4 divisors (see below), whose sum is σ = 99535845696. Its totient is φ = 99499653000.

The previous prime is 99517749319. The next prime is 99517749361. The reversal of 99517749347 is 74394771599.

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 99517749347 - 2³⁰ = 98444007523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99517749647) 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, 9039923 + ... + 9050924.

It is an arithmetic number, because the mean of its divisors is an integer number (24883961424).

Almost surely, 2^99517749347 is an apocalyptic number.

99517749347 is a deficient number, since it is larger than the sum of its proper divisors (18096349).

99517749347 is a wasteful number, since it uses less digits than its factorization.

99517749347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18096348.

The product of its digits is 60011280, while the sum is 65.

The spelling of 99517749347 in words is "ninety-nine billion, five hundred seventeen million, seven hundred forty-nine thousand, three hundred forty-seven".