1393389255337 has 2 divisors, whose sum is σ = 1393389255338. Its totient is φ = 1393389255336.

The previous prime is 1393389255317. The next prime is 1393389255367. The reversal of 1393389255337 is 7335529833931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1393034912361 + 354342976 = 1180269^2 + 18824^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1393389255337 is a prime.

It is not a weakly prime, because it can be changed into another prime (1393389255317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696694627668 + 696694627669.

It is an arithmetic number, because the mean of its divisors is an integer number (696694627669).

Almost surely, 2^{1393389255337} is an apocalyptic number.

It is an amenable number.

1393389255337 is a deficient number, since it is larger than the sum of its proper divisors (1).

1393389255337 is an equidigital number, since it uses as much as digits as its factorization.

1393389255337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55112400, while the sum is 61.

The spelling of 1393389255337 in words is "one trillion, three hundred ninety-three billion, three hundred eighty-nine million, two hundred fifty-five thousand, three hundred thirty-seven".