99907514643 has 16 divisors (see below), whose sum is σ = 139390785536. Its totient is φ = 63573491520.

The previous prime is 99907514599. The next prime is 99907514653. The reversal of 99907514643 is 34641570999.

It is not a de Polignac number, because 99907514643 - 2¹⁰ = 99907513619 is a prime.

It is a super-2 number, since 2×99907514643² (a number of 23 digits) contains 22 as substring.

It is the 316082-nd Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99907514653) by changing a digit.

It is a nontrivial repunit in base 316081.

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, 7351255 + ... + 7364832.

It is an arithmetic number, because the mean of its divisors is an integer number (8711924096).

Almost surely, 2^99907514643 is an apocalyptic number.

99907514643 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

99907514643 is a deficient number, since it is larger than the sum of its proper divisors (39483270893).

99907514643 is a wasteful number, since it uses less digits than its factorization.

99907514643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14716194.

The product of its (nonzero) digits is 7348320, while the sum is 57.

The spelling of 99907514643 in words is "ninety-nine billion, nine hundred seven million, five hundred fourteen thousand, six hundred forty-three".