1272393546019 has 2 divisors, whose sum is σ = 1272393546020. Its totient is φ = 1272393546018.

The previous prime is 1272393545977. The next prime is 1272393546071. The reversal of 1272393546019 is 9106453932721.

It is an a-pointer prime, because the next prime (1272393546071) can be obtained adding 1272393546019 to its sum of digits (52).

It is a weak prime.

It is an emirp because it is prime and its reverse (9106453932721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1272393546019 - 2²⁵ = 1272359991587 is a prime.

It is a super-2 number, since 2×1272393546019² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1272393546119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636196773009 + 636196773010.

It is an arithmetic number, because the mean of its divisors is an integer number (636196773010).

Almost surely, 2^{1272393546019} is an apocalyptic number.

1272393546019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272393546019 is an equidigital number, since it uses as much as digits as its factorization.

1272393546019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2449440, while the sum is 52.

The spelling of 1272393546019 in words is "one trillion, two hundred seventy-two billion, three hundred ninety-three million, five hundred forty-six thousand, nineteen".