30851663606399 has 2 divisors, whose sum is σ = 30851663606400. Its totient is φ = 30851663606398.

The previous prime is 30851663606389. The next prime is 30851663606419. The reversal of 30851663606399 is 99360636615803.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30851663606399 - 2²⁴ = 30851646829183 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30851663606389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15425831803199 + 15425831803200.

It is an arithmetic number, because the mean of its divisors is an integer number (15425831803200).

Almost surely, 2^{30851663606399} is an apocalyptic number.

30851663606399 is a deficient number, since it is larger than the sum of its proper divisors (1).

30851663606399 is an equidigital number, since it uses as much as digits as its factorization.

30851663606399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113374080, while the sum is 65.

The spelling of 30851663606399 in words is "thirty trillion, eight hundred fifty-one billion, six hundred sixty-three million, six hundred six thousand, three hundred ninety-nine".