11801380944 has 20 divisors (see below), whose sum is σ = 30486900896. Its totient is φ = 3933793632.

The previous prime is 11801380907. The next prime is 11801380999. The reversal of 11801380944 is 44908310811.

11801380944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11801380944² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122931004 + ... + 122931099.

Almost surely, 2^11801380944 is an apocalyptic number.

It is an amenable number.

11801380944 is an abundant number, since it is smaller than the sum of its proper divisors (18685519952).

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

11801380944 is a wasteful number, since it uses less digits than its factorization.

11801380944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245862114 (or 245862108 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The spelling of 11801380944 in words is "eleven billion, eight hundred one million, three hundred eighty thousand, nine hundred forty-four".