312842684647 has 2 divisors, whose sum is σ = 312842684648. Its totient is φ = 312842684646.

The previous prime is 312842684599. The next prime is 312842684659. The reversal of 312842684647 is 746486248213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312842684647 - 2⁷ = 312842684519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312842688647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156421342323 + 156421342324.

It is an arithmetic number, because the mean of its divisors is an integer number (156421342324).

Almost surely, 2^312842684647 is an apocalyptic number.

312842684647 is a deficient number, since it is larger than the sum of its proper divisors (1).

312842684647 is an equidigital number, since it uses as much as digits as its factorization.

312842684647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12386304, while the sum is 55.

The spelling of 312842684647 in words is "three hundred twelve billion, eight hundred forty-two million, six hundred eighty-four thousand, six hundred forty-seven".