99923635402 has 16 divisors (see below), whose sum is σ = 158856230592. Its totient is φ = 46977261760.

The previous prime is 99923635321. The next prime is 99923635423. The reversal of 99923635402 is 20453632999.

It is a self number, because there is not a number n which added to its sum of digits gives 99923635402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1390228 + ... + 1460335.

It is an arithmetic number, because the mean of its divisors is an integer number (9928514412).

Almost surely, 2^99923635402 is an apocalyptic number.

99923635402 is a deficient number, since it is larger than the sum of its proper divisors (58932595190).

99923635402 is a wasteful number, since it uses less digits than its factorization.

99923635402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851613.

The product of its (nonzero) digits is 3149280, while the sum is 52.

The spelling of 99923635402 in words is "ninety-nine billion, nine hundred twenty-three million, six hundred thirty-five thousand, four hundred two".