13921413788 has 6 divisors (see below), whose sum is σ = 24362474136. Its totient is φ = 6960706892.

The previous prime is 13921413773. The next prime is 13921413833. The reversal of 13921413788 is 88731412931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1740176720 + ... + 1740176727.

It is an arithmetic number, because the mean of its divisors is an integer number (4060412356).

Almost surely, 2^13921413788 is an apocalyptic number.

It is an amenable number.

13921413788 is a deficient number, since it is larger than the sum of its proper divisors (10441060348).

13921413788 is a wasteful number, since it uses less digits than its factorization.

13921413788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480353451 (or 3480353449 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The spelling of 13921413788 in words is "thirteen billion, nine hundred twenty-one million, four hundred thirteen thousand, seven hundred eighty-eight".