634311614663 has 2 divisors, whose sum is σ = 634311614664. Its totient is φ = 634311614662.

The previous prime is 634311614653. The next prime is 634311614683. The reversal of 634311614663 is 366416113436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 634311614663 - 2¹⁶ = 634311549127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634311614653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317155807331 + 317155807332.

It is an arithmetic number, because the mean of its divisors is an integer number (317155807332).

Almost surely, 2^634311614663 is an apocalyptic number.

634311614663 is a deficient number, since it is larger than the sum of its proper divisors (1).

634311614663 is an equidigital number, since it uses as much as digits as its factorization.

634311614663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 44.

The spelling of 634311614663 in words is "six hundred thirty-four billion, three hundred eleven million, six hundred fourteen thousand, six hundred sixty-three".