99917468563 has 16 divisors (see below), whose sum is σ = 110471431392. Its totient is φ = 90363187200.

The previous prime is 99917468471. The next prime is 99917468587. The reversal of 99917468563 is 36586471999.

It is a de Polignac number, because none of the positive numbers 2^k-99917468563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99917468593) 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 15 ways as a sum of consecutive naturals, for example, 62403 + ... + 451363.

It is an arithmetic number, because the mean of its divisors is an integer number (6904464462).

Almost surely, 2^99917468563 is an apocalyptic number.

99917468563 is a deficient number, since it is larger than the sum of its proper divisors (10553962829).

99917468563 is a wasteful number, since it uses less digits than its factorization.

99917468563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389187 (or 389165 counting only the distinct ones).

The product of its digits is 88179840, while the sum is 67.

The spelling of 99917468563 in words is "ninety-nine billion, nine hundred seventeen million, four hundred sixty-eight thousand, five hundred sixty-three".