1377673127977 has 2 divisors, whose sum is σ = 1377673127978. Its totient is φ = 1377673127976.

The previous prime is 1377673127947. The next prime is 1377673127989. The reversal of 1377673127977 is 7797213767731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1298587877136 + 79085250841 = 1139556^2 + 281221^2 .

It is a cyclic number.

It is not a de Polignac number, because 1377673127977 - 2¹⁵ = 1377673095209 is a prime.

It is a super-2 number, since 2×1377673127977² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1377673127947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688836563988 + 688836563989.

It is an arithmetic number, because the mean of its divisors is an integer number (688836563989).

Almost surely, 2^{1377673127977} is an apocalyptic number.

It is an amenable number.

1377673127977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377673127977 is an equidigital number, since it uses as much as digits as its factorization.

1377673127977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 114354828, while the sum is 67.

The spelling of 1377673127977 in words is "one trillion, three hundred seventy-seven billion, six hundred seventy-three million, one hundred twenty-seven thousand, nine hundred seventy-seven".