12974686477 has 2 divisors, whose sum is σ = 12974686478. Its totient is φ = 12974686476.

The previous prime is 12974686471. The next prime is 12974686547. The reversal of 12974686477 is 77468647921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12817409796 + 157276681 = 113214^2 + 12541^2 .

It is a cyclic number.

It is not a de Polignac number, because 12974686477 - 2²⁷ = 12840468749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12974686471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6487343238 + 6487343239.

It is an arithmetic number, because the mean of its divisors is an integer number (6487343239).

Almost surely, 2^12974686477 is an apocalyptic number.

It is an amenable number.

12974686477 is a deficient number, since it is larger than the sum of its proper divisors (1).

12974686477 is an equidigital number, since it uses as much as digits as its factorization.

12974686477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28449792, while the sum is 61.

The spelling of 12974686477 in words is "twelve billion, nine hundred seventy-four million, six hundred eighty-six thousand, four hundred seventy-seven".