1381994715272 has 16 divisors (see below), whose sum is σ = 2591600443740. Its totient is φ = 690901263616.

The previous prime is 1381994715263. The next prime is 1381994715287. The reversal of 1381994715272 is 2725174991831.

It can be written as a sum of positive squares in 2 ways, for example, as 1037981966596 + 344012748676 = 1018814^2 + 586526^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11950613 + ... + 12065700.

Almost surely, 2^{1381994715272} is an apocalyptic number.

It is an amenable number.

1381994715272 is a deficient number, since it is larger than the sum of its proper divisors (1209605728468).

1381994715272 is a wasteful number, since it uses less digits than its factorization.

1381994715272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24023512 (or 24023508 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 59.

The spelling of 1381994715272 in words is "one trillion, three hundred eighty-one billion, nine hundred ninety-four million, seven hundred fifteen thousand, two hundred seventy-two".