634315551011 has 2 divisors, whose sum is σ = 634315551012. Its totient is φ = 634315551010.

The previous prime is 634315550983. The next prime is 634315551013. The reversal of 634315551011 is 110155513436.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634315551011 is a prime.

Together with 634315551013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (634315551013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317157775505 + 317157775506.

It is an arithmetic number, because the mean of its divisors is an integer number (317157775506).

Almost surely, 2^634315551011 is an apocalyptic number.

634315551011 is a deficient number, since it is larger than the sum of its proper divisors (1).

634315551011 is an equidigital number, since it uses as much as digits as its factorization.

634315551011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 634315551011 in words is "six hundred thirty-four billion, three hundred fifteen million, five hundred fifty-one thousand, eleven".