1371397918489 has 9 divisors (see below), whose sum is σ = 1382431276191. Its totient is φ = 1360451955240.

The previous prime is 1371397918469. The next prime is 1371397918493. The reversal of 1371397918489 is 9848197931731.

The square root of 1371397918489 is 1171067.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1257275566089 + 114122352400 = 1121283^2 + 337820^2 .

It is not a de Polignac number, because 1371397918489 - 2¹⁵ = 1371397885721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1371397918439) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 148720899 + ... + 148730119.

Almost surely, 2^{1371397918489} is an apocalyptic number.

1371397918489 is the 1171067-th square number.

1371397918489 is the 585534-th centered octagonal number.

It is an amenable number.

1371397918489 is a deficient number, since it is larger than the sum of its proper divisors (11033357702).

1371397918489 is an frugal number, since it uses more digits than its factorization.

1371397918489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18696 (or 9348 counting only the distinct ones).

The product of its digits is 82301184, while the sum is 70.

The spelling of 1371397918489 in words is "one trillion, three hundred seventy-one billion, three hundred ninety-seven million, nine hundred eighteen thousand, four hundred eighty-nine".