12673777447 has 2 divisors, whose sum is σ = 12673777448. Its totient is φ = 12673777446.

The previous prime is 12673777367. The next prime is 12673777511. The reversal of 12673777447 is 74477737621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12673777447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12673777547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6336888723 + 6336888724.

It is an arithmetic number, because the mean of its divisors is an integer number (6336888724).

Almost surely, 2^12673777447 is an apocalyptic number.

12673777447 is a deficient number, since it is larger than the sum of its proper divisors (1).

12673777447 is an equidigital number, since it uses as much as digits as its factorization.

12673777447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9680832, while the sum is 55.

The spelling of 12673777447 in words is "twelve billion, six hundred seventy-three million, seven hundred seventy-seven thousand, four hundred forty-seven".