12494812177 has 2 divisors, whose sum is σ = 12494812178. Its totient is φ = 12494812176.

The previous prime is 12494812171. The next prime is 12494812181. The reversal of 12494812177 is 77121849421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12400158736 + 94653441 = 111356^2 + 9729^2 .

It is a cyclic number.

It is not a de Polignac number, because 12494812177 - 2⁷ = 12494812049 is a prime.

It is a super-2 number, since 2×12494812177² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12494812171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6247406088 + 6247406089.

It is an arithmetic number, because the mean of its divisors is an integer number (6247406089).

Almost surely, 2^12494812177 is an apocalyptic number.

It is an amenable number.

12494812177 is a deficient number, since it is larger than the sum of its proper divisors (1).

12494812177 is an equidigital number, since it uses as much as digits as its factorization.

12494812177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 46.

The spelling of 12494812177 in words is "twelve billion, four hundred ninety-four million, eight hundred twelve thousand, one hundred seventy-seven".