12427017677 has 2 divisors, whose sum is σ = 12427017678. Its totient is φ = 12427017676.

The previous prime is 12427017667. The next prime is 12427017683. The reversal of 12427017677 is 77671072421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11599074601 + 827943076 = 107699^2 + 28774^2 .

It is a cyclic number.

It is not a de Polignac number, because 12427017677 - 2¹⁸ = 12426755533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12427017637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6213508838 + 6213508839.

It is an arithmetic number, because the mean of its divisors is an integer number (6213508839).

Almost surely, 2^12427017677 is an apocalyptic number.

It is an amenable number.

12427017677 is a deficient number, since it is larger than the sum of its proper divisors (1).

12427017677 is an equidigital number, since it uses as much as digits as its factorization.

12427017677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230496, while the sum is 44.

The spelling of 12427017677 in words is "twelve billion, four hundred twenty-seven million, seventeen thousand, six hundred seventy-seven".