99935901091388 has 12 divisors (see below), whose sum is σ = 174888699647760. Its totient is φ = 49967701192032.

The previous prime is 99935901091357. The next prime is 99935901091409. The reversal of 99935901091388 is 88319010953999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61435208 + ... + 63040911.

It is an arithmetic number, because the mean of its divisors is an integer number (14574058303980).

Almost surely, 2^{99935901091388} is an apocalyptic number.

It is an amenable number.

99935901091388 is a deficient number, since it is larger than the sum of its proper divisors (74952798556372).

99935901091388 is a wasteful number, since it uses less digits than its factorization.

99935901091388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124676836 (or 124676834 counting only the distinct ones).

The product of its (nonzero) digits is 170061120, while the sum is 74.

The spelling of 99935901091388 in words is "ninety-nine trillion, nine hundred thirty-five billion, nine hundred one million, ninety-one thousand, three hundred eighty-eight".