1272739400074 has 8 divisors (see below), whose sum is σ = 1909202961060. Its totient is φ = 636338413056.

The previous prime is 1272739400063. The next prime is 1272739400081. The reversal of 1272739400074 is 4700049372721.

It can be written as a sum of positive squares in 2 ways, for example, as 1189135725625 + 83603674449 = 1090475^2 + 289143^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1272739399997 and 1272739400033.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15592609 + ... + 15674020.

Almost surely, 2^{1272739400074} is an apocalyptic number.

1272739400074 is a deficient number, since it is larger than the sum of its proper divisors (636463560986).

1272739400074 is a wasteful number, since it uses less digits than its factorization.

1272739400074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31286984.

The product of its (nonzero) digits is 592704, while the sum is 46.

The spelling of 1272739400074 in words is "one trillion, two hundred seventy-two billion, seven hundred thirty-nine million, four hundred thousand, seventy-four".