1277284356479 has 2 divisors, whose sum is σ = 1277284356480. Its totient is φ = 1277284356478.

The previous prime is 1277284356461. The next prime is 1277284356571. The reversal of 1277284356479 is 9746534827721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1277284356479 - 2⁸ = 1277284356223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1277284356979) 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, 638642178239 + 638642178240.

It is an arithmetic number, because the mean of its divisors is an integer number (638642178240).

Almost surely, 2^{1277284356479} is an apocalyptic number.

1277284356479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1277284356479 is an equidigital number, since it uses as much as digits as its factorization.

1277284356479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142248960, while the sum is 65.

The spelling of 1277284356479 in words is "one trillion, two hundred seventy-seven billion, two hundred eighty-four million, three hundred fifty-six thousand, four hundred seventy-nine".