13379920815 has 8 divisors (see below), whose sum is σ = 21407873328. Its totient is φ = 7135957760.

The previous prime is 13379920793. The next prime is 13379920843. The reversal of 13379920815 is 51802997331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13379920815 - 2¹¹ = 13379918767 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445997346 + ... + 445997375.

It is an arithmetic number, because the mean of its divisors is an integer number (2675984166).

Almost surely, 2^13379920815 is an apocalyptic number.

13379920815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13379920815 is a deficient number, since it is larger than the sum of its proper divisors (8027952513).

13379920815 is an equidigital number, since it uses as much as digits as its factorization.

13379920815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891994729.

The product of its (nonzero) digits is 408240, while the sum is 48.

The spelling of 13379920815 in words is "thirteen billion, three hundred seventy-nine million, nine hundred twenty thousand, eight hundred fifteen".