99684960813 has 48 divisors (see below), whose sum is σ = 154732032000. Its totient is φ = 61698203424.

The previous prime is 99684960803. The next prime is 99684960833. The reversal of 99684960813 is 31806948699.

It is a happy number.

99684960813 is a `hidden beast` number, since 9 + 9 + 6 + 8 + 4 + 9 + 608 + 13 = 666.

It is not a de Polignac number, because 99684960813 - 2³⁴ = 82505091629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99684960803) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 913168 + ... + 1016486.

It is an arithmetic number, because the mean of its divisors is an integer number (3223584000).

Almost surely, 2^99684960813 is an apocalyptic number.

It is an amenable number.

99684960813 is a deficient number, since it is larger than the sum of its proper divisors (55047071187).

99684960813 is a wasteful number, since it uses less digits than its factorization.

99684960813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103486 (or 103483 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 63.

The spelling of 99684960813 in words is "ninety-nine billion, six hundred eighty-four million, nine hundred sixty thousand, eight hundred thirteen".