11847131584 has 28 divisors (see below), whose sum is σ = 24055881784. Its totient is φ = 5785807104.

The previous prime is 11847131551. The next prime is 11847131641. The reversal of 11847131584 is 48513174811.

It is a super-3 number, since 3×11847131584³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 11847131584.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2149707 + ... + 2155210.

Almost surely, 2^11847131584 is an apocalyptic number.

It is an amenable number.

11847131584 is an abundant number, since it is smaller than the sum of its proper divisors (12208750200).

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

11847131584 is an equidigital number, since it uses as much as digits as its factorization.

11847131584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4304972 (or 4304962 counting only the distinct ones).

The product of its digits is 107520, while the sum is 43.

The spelling of 11847131584 in words is "eleven billion, eight hundred forty-seven million, one hundred thirty-one thousand, five hundred eighty-four".