13388424720 has 80 divisors (see below), whose sum is σ = 45277227072. Its totient is φ = 3245678080.

The previous prime is 13388424719. The next prime is 13388424733. The reversal of 13388424720 is 2742488331.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2533047 + ... + 2538326.

Almost surely, 2^13388424720 is an apocalyptic number.

13388424720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13388424720 is an abundant number, since it is smaller than the sum of its proper divisors (31888802352).

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

13388424720 is a wasteful number, since it uses less digits than its factorization.

13388424720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5071400 (or 5071394 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 13388424720 in words is "thirteen billion, three hundred eighty-eight million, four hundred twenty-four thousand, seven hundred twenty".