634051264811 has 2 divisors, whose sum is σ = 634051264812. Its totient is φ = 634051264810.

The previous prime is 634051264807. The next prime is 634051264867. The reversal of 634051264811 is 118462150436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 634051264811 - 2² = 634051264807 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (634051264411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317025632405 + 317025632406.

It is an arithmetic number, because the mean of its divisors is an integer number (317025632406).

Almost surely, 2^634051264811 is an apocalyptic number.

634051264811 is a deficient number, since it is larger than the sum of its proper divisors (1).

634051264811 is an equidigital number, since it uses as much as digits as its factorization.

634051264811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 634051264811 in words is "six hundred thirty-four billion, fifty-one million, two hundred sixty-four thousand, eight hundred eleven".