1393257693827 has 16 divisors (see below), whose sum is σ = 1481996113920. Its totient is φ = 1305274169472.

The previous prime is 1393257693803. The next prime is 1393257693847. The reversal of 1393257693827 is 7283967523931.

It is a cyclic number.

It is not a de Polignac number, because 1393257693827 - 2³² = 1388962726531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1393257693847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48976874 + ... + 49005312.

It is an arithmetic number, because the mean of its divisors is an integer number (92624757120).

Almost surely, 2^{1393257693827} is an apocalyptic number.

1393257693827 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1393257693827 is a deficient number, since it is larger than the sum of its proper divisors (88738420093).

1393257693827 is a wasteful number, since it uses less digits than its factorization.

1393257693827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41602.

The product of its digits is 102876480, while the sum is 65.

The spelling of 1393257693827 in words is "one trillion, three hundred ninety-three billion, two hundred fifty-seven million, six hundred ninety-three thousand, eight hundred twenty-seven".