1389536362397 has 2 divisors, whose sum is σ = 1389536362398. Its totient is φ = 1389536362396.

The previous prime is 1389536362393. The next prime is 1389536362447. The reversal of 1389536362397 is 7932636359831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 796072588441 + 593463773956 = 892229^2 + 770366^2 .

It is a cyclic number.

It is not a de Polignac number, because 1389536362397 - 2² = 1389536362393 is a prime.

It is a super-2 number, since 2×1389536362397² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1389536362393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694768181198 + 694768181199.

It is an arithmetic number, because the mean of its divisors is an integer number (694768181199).

Almost surely, 2^{1389536362397} is an apocalyptic number.

It is an amenable number.

1389536362397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1389536362397 is an equidigital number, since it uses as much as digits as its factorization.

1389536362397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 132269760, while the sum is 65.

The spelling of 1389536362397 in words is "one trillion, three hundred eighty-nine billion, five hundred thirty-six million, three hundred sixty-two thousand, three hundred ninety-seven".