13980224644 has 9 divisors (see below), whose sum is σ = 24465806967. Its totient is φ = 6989994084.

The previous prime is 13980224537. The next prime is 13980224663. The reversal of 13980224644 is 44642208931.

The square root of 13980224644 is 118238.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13980224644.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 206917 + ... + 266035.

Almost surely, 2^13980224644 is an apocalyptic number.

13980224644 is the 118238-th square number.

It is an amenable number.

13980224644 is a deficient number, since it is larger than the sum of its proper divisors (10485582323).

13980224644 is an frugal number, since it uses more digits than its factorization.

13980224644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118242 (or 59121 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 13980224644 in words is "thirteen billion, nine hundred eighty million, two hundred twenty-four thousand, six hundred forty-four".