306245372647 has 2 divisors, whose sum is σ = 306245372648. Its totient is φ = 306245372646.

The previous prime is 306245372639. The next prime is 306245372651. The reversal of 306245372647 is 746273542603.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 306245372647 - 2³ = 306245372639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 306245372647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (306245373647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153122686323 + 153122686324.

It is an arithmetic number, because the mean of its divisors is an integer number (153122686324).

Almost surely, 2^306245372647 is an apocalyptic number.

306245372647 is a deficient number, since it is larger than the sum of its proper divisors (1).

306245372647 is an equidigital number, since it uses as much as digits as its factorization.

306245372647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 49.

The spelling of 306245372647 in words is "three hundred six billion, two hundred forty-five million, three hundred seventy-two thousand, six hundred forty-seven".