11805034580 has 48 divisors (see below), whose sum is σ = 24986707200. Its totient is φ = 4684732800.

The previous prime is 11805034573. The next prime is 11805034597. The reversal of 11805034580 is 8543050811.

It is a self number, because there is not a number n which added to its sum of digits gives 11805034580.

It is a congruent number.

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, 3249365 + ... + 3252995.

It is an arithmetic number, because the mean of its divisors is an integer number (520556400).

Almost surely, 2^11805034580 is an apocalyptic number.

11805034580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11805034580 is an abundant number, since it is smaller than the sum of its proper divisors (13181672620).

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

11805034580 is a wasteful number, since it uses less digits than its factorization.

11805034580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4880 (or 4878 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The spelling of 11805034580 in words is "eleven billion, eight hundred five million, thirty-four thousand, five hundred eighty".