1277704919383 has 2 divisors, whose sum is σ = 1277704919384. Its totient is φ = 1277704919382.

The previous prime is 1277704919371. The next prime is 1277704919401. The reversal of 1277704919383 is 3839194077721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1277704919383 - 2³³ = 1269114984791 is a prime.

It is a super-2 number, since 2×1277704919383² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1277704919333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638852459691 + 638852459692.

It is an arithmetic number, because the mean of its divisors is an integer number (638852459692).

Almost surely, 2^{1277704919383} is an apocalyptic number.

1277704919383 is a deficient number, since it is larger than the sum of its proper divisors (1).

1277704919383 is an equidigital number, since it uses as much as digits as its factorization.

1277704919383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16003008, while the sum is 61.

The spelling of 1277704919383 in words is "one trillion, two hundred seventy-seven billion, seven hundred four million, nine hundred nineteen thousand, three hundred eighty-three".