11731443488 has 54 divisors (see below), whose sum is σ = 23724143793. Its totient is φ = 5710401280.

The previous prime is 11731443473. The next prime is 11731443509. The reversal of 11731443488 is 88434413711.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 8378107024 + 3353336464 = 91532^2 + 57908^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=76588.

It is a super-2 number, since 2×11731443488² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

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, 25120631 + ... + 25121097.

Almost surely, 2^11731443488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11731443488

11731443488 is an abundant number, since it is smaller than the sum of its proper divisors (11992700305).

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

11731443488 is an frugal number, since it uses more digits than its factorization.

11731443488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026 (or 510 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The spelling of 11731443488 in words is "eleven billion, seven hundred thirty-one million, four hundred forty-three thousand, four hundred eighty-eight".