99775968641 has 8 divisors (see below), whose sum is σ = 100470375360. Its totient is φ = 99082565712.

The previous prime is 99775968599. The next prime is 99775968679. The reversal of 99775968641 is 14686957799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99775968641 - 2¹⁴ = 99775952257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99775961641) 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 7 ways as a sum of consecutive naturals, for example, 50906 + ... + 449603.

It is an arithmetic number, because the mean of its divisors is an integer number (12558796920).

Almost surely, 2^99775968641 is an apocalyptic number.

It is an amenable number.

99775968641 is a deficient number, since it is larger than the sum of its proper divisors (694406719).

99775968641 is a wasteful number, since it uses less digits than its factorization.

99775968641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501895.

The product of its digits is 205752960, while the sum is 71.

The spelling of 99775968641 in words is "ninety-nine billion, seven hundred seventy-five million, nine hundred sixty-eight thousand, six hundred forty-one".