877116885769 has 2 divisors, whose sum is σ = 877116885770. Its totient is φ = 877116885768.

The previous prime is 877116885739. The next prime is 877116885803. The reversal of 877116885769 is 967588611778.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 863065154169 + 14051731600 = 929013^2 + 118540^2 .

It is a cyclic number.

It is not a de Polignac number, because 877116885769 - 2¹⁷ = 877116754697 is a prime.

It is a super-2 number, since 2×877116885769² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (877116885739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 438558442884 + 438558442885.

It is an arithmetic number, because the mean of its divisors is an integer number (438558442885).

Almost surely, 2^877116885769 is an apocalyptic number.

It is an amenable number.

877116885769 is a deficient number, since it is larger than the sum of its proper divisors (1).

877116885769 is an equidigital number, since it uses as much as digits as its factorization.

877116885769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 284497920, while the sum is 73.

The spelling of 877116885769 in words is "eight hundred seventy-seven billion, one hundred sixteen million, eight hundred eighty-five thousand, seven hundred sixty-nine".