13443737768 has 32 divisors (see below), whose sum is σ = 27411129000. Its totient is φ = 6155476992.

The previous prime is 13443737759. The next prime is 13443737773. The reversal of 13443737768 is 86773734431.

It can be written as a sum of positive squares in 4 ways, for example, as 12990984484 + 452753284 = 113978^2 + 21278^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1330793 + ... + 1340856.

Almost surely, 2^13443737768 is an apocalyptic number.

It is an amenable number.

13443737768 is an abundant number, since it is smaller than the sum of its proper divisors (13967391232).

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

13443737768 is a wasteful number, since it uses less digits than its factorization.

13443737768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671709 (or 2671705 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 53.

The spelling of 13443737768 in words is "thirteen billion, four hundred forty-three million, seven hundred thirty-seven thousand, seven hundred sixty-eight".