11552838780 has 72 divisors (see below), whose sum is σ = 37629255888. Its totient is φ = 2640648192.

The previous prime is 11552838757. The next prime is 11552838799. The reversal of 11552838780 is 8783825511.

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, 1961829 + ... + 1967708.

It is an arithmetic number, because the mean of its divisors is an integer number (522628554).

Almost surely, 2^11552838780 is an apocalyptic number.

11552838780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11552838780 is an abundant number, since it is smaller than the sum of its proper divisors (26076417108).

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

11552838780 is a wasteful number, since it uses less digits than its factorization.

11552838780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3929563 (or 3929554 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 48.

The spelling of 11552838780 in words is "eleven billion, five hundred fifty-two million, eight hundred thirty-eight thousand, seven hundred eighty".