11644893724 has 12 divisors (see below), whose sum is σ = 20379333744. Its totient is φ = 5822226944.

The previous prime is 11644893719. The next prime is 11644893737. The reversal of 11644893724 is 42739844611.

It is a happy number.

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, 144897 + ... + 210439.

It is an arithmetic number, because the mean of its divisors is an integer number (1698277812).

Almost surely, 2^11644893724 is an apocalyptic number.

It is an amenable number.

11644893724 is a deficient number, since it is larger than the sum of its proper divisors (8734440020).

11644893724 is a wasteful number, since it uses less digits than its factorization.

11644893724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109964 (or 109962 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The spelling of 11644893724 in words is "eleven billion, six hundred forty-four million, eight hundred ninety-three thousand, seven hundred twenty-four".