12400965900 has 54 divisors (see below), whose sum is σ = 38870141492. Its totient is φ = 3306924000.

The previous prime is 12400965887. The next prime is 12400965919. The reversal of 12400965900 is 956900421.

12400965900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 17 ways as a sum of consecutive naturals, for example, 6888526 + ... + 6890325.

Almost surely, 2^12400965900 is an apocalyptic number.

12400965900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12400965900 is an abundant number, since it is smaller than the sum of its proper divisors (26469175592).

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

12400965900 is a wasteful number, since it uses less digits than its factorization.

12400965900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13778871 (or 13778861 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 12400965900 in words is "twelve billion, four hundred million, nine hundred sixty-five thousand, nine hundred".