11564854038780 has 96 divisors (see below), whose sum is σ = 37057342178304. Its totient is φ = 2639837405184.

The previous prime is 11564854038769. The next prime is 11564854038833. The reversal of 11564854038780 is 8783045846511.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18217797 + ... + 18841916.

It is an arithmetic number, because the mean of its divisors is an integer number (386013981024).

Almost surely, 2^{11564854038780} is an apocalyptic number.

11564854038780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11564854038780 is an abundant number, since it is smaller than the sum of its proper divisors (25492488139524).

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

11564854038780 is a wasteful number, since it uses less digits than its factorization.

11564854038780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37060475 (or 37060473 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 60.

The spelling of 11564854038780 in words is "eleven trillion, five hundred sixty-four billion, eight hundred fifty-four million, thirty-eight thousand, seven hundred eighty".