11987510900 has 72 divisors (see below), whose sum is σ = 28431680256. Its totient is φ = 4367347200.

The previous prime is 11987510893. The next prime is 11987510911. The reversal of 11987510900 is 901578911.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61034 + ... + 166433.

It is an arithmetic number, because the mean of its divisors is an integer number (394884448).

Almost surely, 2^11987510900 is an apocalyptic number.

11987510900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11987510900 is an abundant number, since it is smaller than the sum of its proper divisors (16444169356).

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

11987510900 is a wasteful number, since it uses less digits than its factorization.

11987510900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227529 (or 227522 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 41.

The spelling of 11987510900 in words is "eleven billion, nine hundred eighty-seven million, five hundred ten thousand, nine hundred".