11731489344 has 63 divisors (see below), whose sum is σ = 33633648633. Its totient is φ = 3909629952.

The previous prime is 11731489271. The next prime is 11731489351. The reversal of 11731489344 is 44398413711.

It is a happy number.

The square root of 11731489344 is 108312.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5198400 + 11726290944 = 2280^2 + 108288^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11731489344.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2597232 + ... + 2601744.

Almost surely, 2^11731489344 is an apocalyptic number.

11731489344 is the 108312-nd square number.

It is an amenable number.

11731489344 is an abundant number, since it is smaller than the sum of its proper divisors (21902159289).

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

11731489344 is an frugal number, since it uses more digits than its factorization.

11731489344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9044 (or 4518 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The spelling of 11731489344 in words is "eleven billion, seven hundred thirty-one million, four hundred eighty-nine thousand, three hundred forty-four".