3877377788077 has 2 divisors, whose sum is σ = 3877377788078. Its totient is φ = 3877377788076.

The previous prime is 3877377788047. The next prime is 3877377788087. The reversal of 3877377788077 is 7708877737783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3537901426761 + 339476361316 = 1880931^2 + 582646^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3877377788077 is a prime.

It is a super-2 number, since 2×3877377788077² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3877377787988 and 3877377788006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3877377788017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1938688894038 + 1938688894039.

It is an arithmetic number, because the mean of its divisors is an integer number (1938688894039).

Almost surely, 2^{3877377788077} is an apocalyptic number.

It is an amenable number.

3877377788077 is a deficient number, since it is larger than the sum of its proper divisors (1).

3877377788077 is an equidigital number, since it uses as much as digits as its factorization.

3877377788077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3794886144, while the sum is 79.

The spelling of 3877377788077 in words is "three trillion, eight hundred seventy-seven billion, three hundred seventy-seven million, seven hundred eighty-eight thousand, seventy-seven".