1277704920383 has 4 divisors (see below), whose sum is σ = 1277735283720. Its totient is φ = 1277674557048.

The previous prime is 1277704920367. The next prime is 1277704920407. The reversal of 1277704920383 is 3830294077721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1277704920383 - 2⁴ = 1277704920367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1277704925383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15118460 + ... + 15202737.

It is an arithmetic number, because the mean of its divisors is an integer number (319433820930).

Almost surely, 2^{1277704920383} is an apocalyptic number.

1277704920383 is a deficient number, since it is larger than the sum of its proper divisors (30363337).

1277704920383 is an equidigital number, since it uses as much as digits as its factorization.

1277704920383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30363336.

The product of its (nonzero) digits is 3556224, while the sum is 53.

The spelling of 1277704920383 in words is "one trillion, two hundred seventy-seven billion, seven hundred four million, nine hundred twenty thousand, three hundred eighty-three".