11265437808 has 30 divisors (see below), whose sum is σ = 31527579824. Its totient is φ = 3755145888.

The previous prime is 11265437791. The next prime is 11265437921. The reversal of 11265437808 is 80873456211.

11265437808 is a `hidden beast` number, since 1 + 1 + 26 + 543 + 7 + 80 + 8 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39115960 + ... + 39116247.

Almost surely, 2^11265437808 is an apocalyptic number.

11265437808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11265437808 is an abundant number, since it is smaller than the sum of its proper divisors (20262142016).

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

11265437808 is a wasteful number, since it uses less digits than its factorization.

11265437808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78232221 (or 78232212 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 11265437808 in words is "eleven billion, two hundred sixty-five million, four hundred thirty-seven thousand, eight hundred eight".