1277873371763 has 2 divisors, whose sum is σ = 1277873371764. Its totient is φ = 1277873371762.

The previous prime is 1277873371759. The next prime is 1277873371793. The reversal of 1277873371763 is 3671733787721.

It is a weak prime.

It is an emirp because it is prime and its reverse (3671733787721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1277873371763 - 2² = 1277873371759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1277873371696 and 1277873371705.

It is not a weakly prime, because it can be changed into another prime (1277873371793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638936685881 + 638936685882.

It is an arithmetic number, because the mean of its divisors is an integer number (638936685882).

Almost surely, 2^{1277873371763} is an apocalyptic number.

1277873371763 is a deficient number, since it is larger than the sum of its proper divisors (1).

1277873371763 is an equidigital number, since it uses as much as digits as its factorization.

1277873371763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43563744, while the sum is 62.

The spelling of 1277873371763 in words is "one trillion, two hundred seventy-seven billion, eight hundred seventy-three million, three hundred seventy-one thousand, seven hundred sixty-three".