11481438368 has 24 divisors (see below), whose sum is σ = 22837119732. Its totient is φ = 5681534976.

The previous prime is 11481438347. The next prime is 11481438391. The reversal of 11481438368 is 86383418411.

It can be written as a sum of positive squares in 2 ways, for example, as 11472123664 + 9314704 = 107108^2 + 3052^2 .

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, 1846355 + ... + 1852562.

Almost surely, 2^11481438368 is an apocalyptic number.

It is an amenable number.

11481438368 is a deficient number, since it is larger than the sum of its proper divisors (11355681364).

11481438368 is an equidigital number, since it uses as much as digits as its factorization.

11481438368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699024 (or 3699016 counting only the distinct ones).

The product of its digits is 442368, while the sum is 47.

It can be divided in two parts, 1148143 and 8368, that added together give a palindrome (1156511).

The spelling of 11481438368 in words is "eleven billion, four hundred eighty-one million, four hundred thirty-eight thousand, three hundred sixty-eight".