99999013950 has 72 divisors (see below), whose sum is σ = 293088033576. Its totient is φ = 24242184000.

The previous prime is 99999013949. The next prime is 99999013973. The reversal of 99999013950 is 5931099999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10095961 + ... + 10105860.

It is an arithmetic number, because the mean of its divisors is an integer number (4070667133).

Almost surely, 2^99999013950 is an apocalyptic number.

99999013950 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

99999013950 is an abundant number, since it is smaller than the sum of its proper divisors (193089019626).

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

99999013950 is a wasteful number, since it uses less digits than its factorization.

99999013950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20201850 (or 20201842 counting only the distinct ones).

The product of its (nonzero) digits is 7971615, while the sum is 63.

The spelling of 99999013950 in words is "ninety-nine billion, nine hundred ninety-nine million, thirteen thousand, nine hundred fifty".