23899205500 has 24 divisors (see below), whose sum is σ = 52195865904. Its totient is φ = 9559682000.

The previous prime is 23899205479. The next prime is 23899205513. The reversal of 23899205500 is 550299832.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23898706 + ... + 23899705.

It is an arithmetic number, because the mean of its divisors is an integer number (2174827746).

Almost surely, 2^23899205500 is an apocalyptic number.

23899205500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23899205500 is an abundant number, since it is smaller than the sum of its proper divisors (28296660404).

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

23899205500 is a wasteful number, since it uses less digits than its factorization.

23899205500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47798430 (or 47798418 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 23899205500 in words is "twenty-three billion, eight hundred ninety-nine million, two hundred five thousand, five hundred".