877027807748117 has 2 divisors, whose sum is σ = 877027807748118. Its totient is φ = 877027807748116.

The previous prime is 877027807748063. The next prime is 877027807748123. The reversal of 877027807748117 is 711847708720778.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 636382053904996 + 240645753843121 = 25226614^2 + 15512761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-877027807748117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (877027807148117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 438513903874058 + 438513903874059.

It is an arithmetic number, because the mean of its divisors is an integer number (438513903874059).

Almost surely, 2^{877027807748117} is an apocalyptic number.

It is an amenable number.

877027807748117 is a deficient number, since it is larger than the sum of its proper divisors (1).

877027807748117 is an equidigital number, since it uses as much as digits as its factorization.

877027807748117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 481890304, while the sum is 74.

The spelling of 877027807748117 in words is "eight hundred seventy-seven trillion, twenty-seven billion, eight hundred seven million, seven hundred forty-eight thousand, one hundred seventeen".