13791720810 has 48 divisors (see below), whose sum is σ = 38504236896. Its totient is φ = 3152392992.

The previous prime is 13791720797. The next prime is 13791720821. The reversal of 13791720810 is 1802719731.

It is a super-2 number, since 2×13791720810² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

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, 4689592 + ... + 4692531.

It is an arithmetic number, because the mean of its divisors is an integer number (802171602).

Almost surely, 2^13791720810 is an apocalyptic number.

13791720810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13791720810 is an abundant number, since it is smaller than the sum of its proper divisors (24712516086).

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

13791720810 is a wasteful number, since it uses less digits than its factorization.

13791720810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9382147 (or 9382140 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 39.

The spelling of 13791720810 in words is "thirteen billion, seven hundred ninety-one million, seven hundred twenty thousand, eight hundred ten".