27255624677 has 2 divisors, whose sum is σ = 27255624678. Its totient is φ = 27255624676.

The previous prime is 27255624661. The next prime is 27255624733. The reversal of 27255624677 is 77642655272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26371811236 + 883813441 = 162394^2 + 29729^2 .

It is a cyclic number.

It is not a de Polignac number, because 27255624677 - 2⁴ = 27255624661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27255624647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13627812338 + 13627812339.

It is an arithmetic number, because the mean of its divisors is an integer number (13627812339).

Almost surely, 2^27255624677 is an apocalyptic number.

It is an amenable number.

27255624677 is a deficient number, since it is larger than the sum of its proper divisors (1).

27255624677 is an equidigital number, since it uses as much as digits as its factorization.

27255624677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9878400, while the sum is 53.

The spelling of 27255624677 in words is "twenty-seven billion, two hundred fifty-five million, six hundred twenty-four thousand, six hundred seventy-seven".