1369974270681 has 15 divisors (see below), whose sum is σ = 2046520511013. Its totient is φ = 913309157700.

The previous prime is 1369974270659. The next prime is 1369974270683. The reversal of 1369974270681 is 1860724799631.

The square root of 1369974270681 is 1170459.

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

1369974270681 is a `hidden beast` number, since 1 + 3 + 69 + 97 + 427 + 0 + 68 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1369974270681 is a prime.

It is a super-2 number, since 2×1369974270681² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1369974270683) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 10469106 + ... + 10599156.

Almost surely, 2^{1369974270681} is an apocalyptic number.

1369974270681 is the 1170459-th square number.

1369974270681 is the 585230-th centered octagonal number.

It is an amenable number.

1369974270681 is a deficient number, since it is larger than the sum of its proper divisors (676546240332).

1369974270681 is an frugal number, since it uses more digits than its factorization.

1369974270681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260114 (or 130054 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The spelling of 1369974270681 in words is "one trillion, three hundred sixty-nine billion, nine hundred seventy-four million, two hundred seventy thousand, six hundred eighty-one".