1272396855241 has 64 divisors (see below), whose sum is σ = 1416243628800. Its totient is φ = 1138456166400.

The previous prime is 1272396855209. The next prime is 1272396855251. The reversal of 1272396855241 is 1425586932721.

It is a happy number.

It is not a de Polignac number, because 1272396855241 - 2⁵ = 1272396855209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1272396855251) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 2228365486 + ... + 2228366056.

It is an arithmetic number, because the mean of its divisors is an integer number (22128806700).

Almost surely, 2^{1272396855241} is an apocalyptic number.

It is an amenable number.

1272396855241 is a deficient number, since it is larger than the sum of its proper divisors (143846773559).

1272396855241 is a wasteful number, since it uses less digits than its factorization.

1272396855241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130.

The product of its digits is 7257600, while the sum is 55.

The spelling of 1272396855241 in words is "one trillion, two hundred seventy-two billion, three hundred ninety-six million, eight hundred fifty-five thousand, two hundred forty-one".