77625852677 has 2 divisors, whose sum is σ = 77625852678. Its totient is φ = 77625852676.

The previous prime is 77625852649. The next prime is 77625852683.

77625852677 is nontrivially palindromic in base 10.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62764779841 + 14861072836 = 250529^2 + 121906^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 77625852677 - 2¹⁴ = 77625836293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77625855677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38812926338 + 38812926339.

It is an arithmetic number, because the mean of its divisors is an integer number (38812926339).

Almost surely, 2^77625852677 is an apocalyptic number.

It is an amenable number.

77625852677 is a deficient number, since it is larger than the sum of its proper divisors (1).

77625852677 is an equidigital number, since it uses as much as digits as its factorization.

77625852677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69148800, while the sum is 62.

The spelling of 77625852677 in words is "seventy-seven billion, six hundred twenty-five million, eight hundred fifty-two thousand, six hundred seventy-seven".