877777765223 has 2 divisors, whose sum is σ = 877777765224. Its totient is φ = 877777765222.

The previous prime is 877777765147. The next prime is 877777765237. The reversal of 877777765223 is 322567777778.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 877777765223 - 2⁸ = 877777764967 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (877777765283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 438888882611 + 438888882612.

It is an arithmetic number, because the mean of its divisors is an integer number (438888882612).

Almost surely, 2^877777765223 is an apocalyptic number.

877777765223 is a deficient number, since it is larger than the sum of its proper divisors (1).

877777765223 is an equidigital number, since it uses as much as digits as its factorization.

877777765223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338829120, while the sum is 68.

The spelling of 877777765223 in words is "eight hundred seventy-seven billion, seven hundred seventy-seven million, seven hundred sixty-five thousand, two hundred twenty-three".