99431433502 has 8 divisors (see below), whose sum is σ = 150822961200. Its totient is φ = 49157113104.

The previous prime is 99431433473. The next prime is 99431433527. The reversal of 99431433502 is 20533413499.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 279301602 + ... + 279301957.

It is an arithmetic number, because the mean of its divisors is an integer number (18852870150).

Almost surely, 2^99431433502 is an apocalyptic number.

99431433502 is a deficient number, since it is larger than the sum of its proper divisors (51391527698).

99431433502 is a wasteful number, since it uses less digits than its factorization.

99431433502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558603650.

The product of its (nonzero) digits is 349920, while the sum is 43.

The spelling of 99431433502 in words is "ninety-nine billion, four hundred thirty-one million, four hundred thirty-three thousand, five hundred two".