13750443440 has 20 divisors (see below), whose sum is σ = 31969781184. Its totient is φ = 5500177344.

The previous prime is 13750443439. The next prime is 13750443451. The reversal of 13750443440 is 4434405731.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 13750443440.

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, 85940192 + ... + 85940351.

Almost surely, 2^13750443440 is an apocalyptic number.

13750443440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13750443440 is an abundant number, since it is smaller than the sum of its proper divisors (18219337744).

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

13750443440 is a wasteful number, since it uses less digits than its factorization.

13750443440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171880556 (or 171880550 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 35.

The spelling of 13750443440 in words is "thirteen billion, seven hundred fifty million, four hundred forty-three thousand, four hundred forty".