99090018769 has 16 divisors (see below), whose sum is σ = 116617072000. Its totient is φ = 84155056272.

The previous prime is 99090018739. The next prime is 99090018791. The reversal of 99090018769 is 96781009099.

It is not a de Polignac number, because 99090018769 - 2¹³ = 99090010577 is a prime.

It is a super-2 number, since 2×99090018769² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99090018719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1287807 + ... + 1362580.

It is an arithmetic number, because the mean of its divisors is an integer number (7288567000).

Almost surely, 2^99090018769 is an apocalyptic number.

It is an amenable number.

99090018769 is a deficient number, since it is larger than the sum of its proper divisors (17527053231).

99090018769 is a wasteful number, since it uses less digits than its factorization.

99090018769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650517 (or 2650503 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 58.

The spelling of 99090018769 in words is "ninety-nine billion, ninety million, eighteen thousand, seven hundred sixty-nine".