12449118677 has 2 divisors, whose sum is σ = 12449118678. Its totient is φ = 12449118676.

The previous prime is 12449118631. The next prime is 12449118709. The reversal of 12449118677 is 77681194421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12448757476 + 361201 = 111574^2 + 601^2 .

It is a cyclic number.

It is not a de Polignac number, because 12449118677 - 2¹⁸ = 12448856533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12449118977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6224559338 + 6224559339.

It is an arithmetic number, because the mean of its divisors is an integer number (6224559339).

Almost surely, 2^12449118677 is an apocalyptic number.

It is an amenable number.

12449118677 is a deficient number, since it is larger than the sum of its proper divisors (1).

12449118677 is an equidigital number, since it uses as much as digits as its factorization.

12449118677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 50.

The spelling of 12449118677 in words is "twelve billion, four hundred forty-nine million, one hundred eighteen thousand, six hundred seventy-seven".