11813403500 has 48 divisors (see below), whose sum is σ = 25811472960. Its totient is φ = 4723347200.

The previous prime is 11813403499. The next prime is 11813403601. The reversal of 11813403500 is 530431811.

It is a self number, because there is not a number n which added to its sum of digits gives 11813403500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1856324 + ... + 1862676.

It is an arithmetic number, because the mean of its divisors is an integer number (537739020).

Almost surely, 2^11813403500 is an apocalyptic number.

11813403500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11813403500 is an abundant number, since it is smaller than the sum of its proper divisors (13998069460).

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

11813403500 is a wasteful number, since it uses less digits than its factorization.

11813403500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10091 (or 10079 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The spelling of 11813403500 in words is "eleven billion, eight hundred thirteen million, four hundred three thousand, five hundred".