99893637812 has 48 divisors (see below), whose sum is σ = 184883381760. Its totient is φ = 47129651712.

The previous prime is 99893637773. The next prime is 99893637827. The reversal of 99893637812 is 21873639899.

It is a super-3 number, since 3×99893637812³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9421298 + ... + 9431894.

It is an arithmetic number, because the mean of its divisors is an integer number (3851737120).

Almost surely, 2^99893637812 is an apocalyptic number.

99893637812 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

99893637812 is a deficient number, since it is larger than the sum of its proper divisors (84989743948).

99893637812 is a wasteful number, since it uses less digits than its factorization.

99893637812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12000 (or 11998 counting only the distinct ones).

The product of its digits is 35271936, while the sum is 65.

The spelling of 99893637812 in words is "ninety-nine billion, eight hundred ninety-three million, six hundred thirty-seven thousand, eight hundred twelve".