99865035918 has 48 divisors (see below), whose sum is σ = 236198027520. Its totient is φ = 31536324216.

The previous prime is 99865035911. The next prime is 99865035929. The reversal of 99865035918 is 81953056899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99865035911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5398230 + ... + 5416697.

It is an arithmetic number, because the mean of its divisors is an integer number (4920792240).

Almost surely, 2^99865035918 is an apocalyptic number.

99865035918 is an abundant number, since it is smaller than the sum of its proper divisors (136332991602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99865035918 is a wasteful number, since it uses less digits than its factorization.

99865035918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10814963 (or 10814951 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 63.

The spelling of 99865035918 in words is "ninety-nine billion, eight hundred sixty-five million, thirty-five thousand, nine hundred eighteen".