634310410091 has 2 divisors, whose sum is σ = 634310410092. Its totient is φ = 634310410090.

The previous prime is 634310410087. The next prime is 634310410099. The reversal of 634310410091 is 190014013436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 634310410091 - 2² = 634310410087 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (634310410099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317155205045 + 317155205046.

It is an arithmetic number, because the mean of its divisors is an integer number (317155205046).

Almost surely, 2^634310410091 is an apocalyptic number.

634310410091 is a deficient number, since it is larger than the sum of its proper divisors (1).

634310410091 is an equidigital number, since it uses as much as digits as its factorization.

634310410091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

It can be divided in two parts, 634310 and 410091, that added together give a palindrome (1044401).

The spelling of 634310410091 in words is "six hundred thirty-four billion, three hundred ten million, four hundred ten thousand, ninety-one".