11536478784 has 70 divisors (see below), whose sum is σ = 34197752534. Its totient is φ = 3845491200.

The previous prime is 11536478761. The next prime is 11536478797. The reversal of 11536478784 is 48787463511.

It can be written as a sum of positive squares in only one way, i.e., 9517953600 + 2018525184 = 97560^2 + 44928^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 11536478784.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1107517 + ... + 1117884.

Almost surely, 2^11536478784 is an apocalyptic number.

It is an amenable number.

11536478784 is an abundant number, since it is smaller than the sum of its proper divisors (22661273750).

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

11536478784 is an equidigital number, since it uses as much as digits as its factorization.

11536478784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225425 (or 2225406 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The spelling of 11536478784 in words is "eleven billion, five hundred thirty-six million, four hundred seventy-eight thousand, seven hundred eighty-four".