1396837381715 has 4 divisors (see below), whose sum is σ = 1676204858064. Its totient is φ = 1117469905368.

The previous prime is 1396837381699. The next prime is 1396837381721. The reversal of 1396837381715 is 5171837386931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1396837381715 - 2⁴ = 1396837381699 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139683738167 + ... + 139683738176.

It is an arithmetic number, because the mean of its divisors is an integer number (419051214516).

Almost surely, 2^{1396837381715} is an apocalyptic number.

1396837381715 is a deficient number, since it is larger than the sum of its proper divisors (279367476349).

1396837381715 is an equidigital number, since it uses as much as digits as its factorization.

1396837381715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279367476348.

The product of its digits is 22861440, while the sum is 62.

The spelling of 1396837381715 in words is "one trillion, three hundred ninety-six billion, eight hundred thirty-seven million, three hundred eighty-one thousand, seven hundred fifteen".