99893637811 has 16 divisors (see below), whose sum is σ = 109524925440. Its totient is φ = 90354566880.

The previous prime is 99893637773. The next prime is 99893637827. The reversal of 99893637811 is 11873639899.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99893637811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99893637911) 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, 3934620 + ... + 3959926.

It is an arithmetic number, because the mean of its divisors is an integer number (6845307840).

Almost surely, 2^99893637811 is an apocalyptic number.

99893637811 is a deficient number, since it is larger than the sum of its proper divisors (9631287629).

99893637811 is a wasteful number, since it uses less digits than its factorization.

99893637811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27114.

The product of its digits is 17635968, while the sum is 64.

The spelling of 99893637811 in words is "ninety-nine billion, eight hundred ninety-three million, six hundred thirty-seven thousand, eight hundred eleven".