1380953451272 has 8 divisors (see below), whose sum is σ = 2589287721150. Its totient is φ = 690476725632.

The previous prime is 1380953451253. The next prime is 1380953451301. The reversal of 1380953451272 is 2721543590831.

It can be written as a sum of positive squares in only one way, i.e., 1289055953956 + 91897497316 = 1135366^2 + 303146^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1380953451272.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86309590697 + ... + 86309590712.

Almost surely, 2^{1380953451272} is an apocalyptic number.

It is an amenable number.

1380953451272 is a deficient number, since it is larger than the sum of its proper divisors (1208334269878).

1380953451272 is a wasteful number, since it uses less digits than its factorization.

1380953451272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172619181415 (or 172619181411 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 1380953451272 in words is "one trillion, three hundred eighty billion, nine hundred fifty-three million, four hundred fifty-one thousand, two hundred seventy-two".