1273761382339 has 2 divisors, whose sum is σ = 1273761382340. Its totient is φ = 1273761382338.

The previous prime is 1273761382321. The next prime is 1273761382393. The reversal of 1273761382339 is 9332831673721.

Together with next prime (1273761382393) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1273761382339 - 2¹⁵ = 1273761349571 is a prime.

It is a super-2 number, since 2×1273761382339² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1273761382339.

It is not a weakly prime, because it can be changed into another prime (1270761382339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636880691169 + 636880691170.

It is an arithmetic number, because the mean of its divisors is an integer number (636880691170).

Almost surely, 2^{1273761382339} is an apocalyptic number.

1273761382339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1273761382339 is an equidigital number, since it uses as much as digits as its factorization.

1273761382339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6858432, while the sum is 55.

The spelling of 1273761382339 in words is "one trillion, two hundred seventy-three billion, seven hundred sixty-one million, three hundred eighty-two thousand, three hundred thirty-nine".