1397289345507 has 80 divisors (see below), whose sum is σ = 2286400744320. Its totient is φ = 843377184000.

The previous prime is 1397289345457. The next prime is 1397289345533. The reversal of 1397289345507 is 7055439827931.

1397289345507 is a `hidden beast` number, since 1 + 3 + 9 + 7 + 2 + 89 + 3 + 45 + 507 = 666.

It is not a de Polignac number, because 1397289345507 - 2⁷ = 1397289345379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1397289345407) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 238809132 + ... + 238814982.

It is an arithmetic number, because the mean of its divisors is an integer number (28580009304).

Almost surely, 2^{1397289345507} is an apocalyptic number.

1397289345507 is a deficient number, since it is larger than the sum of its proper divisors (889111398813).

1397289345507 is a wasteful number, since it uses less digits than its factorization.

1397289345507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6926 (or 6917 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 63.

The spelling of 1397289345507 in words is "one trillion, three hundred ninety-seven billion, two hundred eighty-nine million, three hundred forty-five thousand, five hundred seven".