634006754857 has 4 divisors (see below), whose sum is σ = 724579148416. Its totient is φ = 543434361300.

The previous prime is 634006754851. The next prime is 634006754917. The reversal of 634006754857 is 758457600436.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 634006754857 - 2⁷ = 634006754729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 634006754798 and 634006754807.

It is not an unprimeable number, because it can be changed into a prime (634006754851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45286196769 + ... + 45286196782.

It is an arithmetic number, because the mean of its divisors is an integer number (181144787104).

Almost surely, 2^634006754857 is an apocalyptic number.

It is an amenable number.

634006754857 is a deficient number, since it is larger than the sum of its proper divisors (90572393559).

634006754857 is an equidigital number, since it uses as much as digits as its factorization.

634006754857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90572393558.

The product of its (nonzero) digits is 16934400, while the sum is 55.

The spelling of 634006754857 in words is "six hundred thirty-four billion, six million, seven hundred fifty-four thousand, eight hundred fifty-seven".