11261188904 has 32 divisors (see below), whose sum is σ = 24719688000. Its totient is φ = 4708510080.

The previous prime is 11261188903. The next prime is 11261188919. The reversal of 11261188904 is 40988116211.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (11261188903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2450054 + ... + 2454645.

It is an arithmetic number, because the mean of its divisors is an integer number (772490250).

Almost surely, 2^11261188904 is an apocalyptic number.

11261188904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11261188904 is an abundant number, since it is smaller than the sum of its proper divisors (13458499096).

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

11261188904 is a wasteful number, since it uses less digits than its factorization.

11261188904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4904753 (or 4904749 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 41.

The spelling of 11261188904 in words is "eleven billion, two hundred sixty-one million, one hundred eighty-eight thousand, nine hundred four".