634868030779 has 2 divisors, whose sum is σ = 634868030780. Its totient is φ = 634868030778.

The previous prime is 634868030737. The next prime is 634868030809. The reversal of 634868030779 is 977030868436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 634868030779 - 2¹¹ = 634868028731 is a prime.

It is not a weakly prime, because it can be changed into another prime (634868730779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317434015389 + 317434015390.

It is an arithmetic number, because the mean of its divisors is an integer number (317434015390).

Almost surely, 2^634868030779 is an apocalyptic number.

634868030779 is a deficient number, since it is larger than the sum of its proper divisors (1).

634868030779 is an equidigital number, since it uses as much as digits as its factorization.

634868030779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36578304, while the sum is 61.

The spelling of 634868030779 in words is "six hundred thirty-four billion, eight hundred sixty-eight million, thirty thousand, seven hundred seventy-nine".