13388497920 has 264 divisors, whose sum is σ = 53019330624. Its totient is φ = 3060154368.

The previous prime is 13388497907. The next prime is 13388497939. The reversal of 13388497920 is 2979488331.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 301807 + ... + 343313.

Almost surely, 2^13388497920 is an apocalyptic number.

13388497920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13388497920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26509665312).

13388497920 is an abundant number, since it is smaller than the sum of its proper divisors (39630832704).

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

13388497920 is a wasteful number, since it uses less digits than its factorization.

13388497920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41545 (or 41524 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 13388497920 in words is "thirteen billion, three hundred eighty-eight million, four hundred ninety-seven thousand, nine hundred twenty".