634051306857 has 8 divisors (see below), whose sum is σ = 845413256160. Its totient is φ = 422695114400.

The previous prime is 634051306841. The next prime is 634051306907. The reversal of 634051306857 is 758603150436.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 634051306857 - 2⁴ = 634051306841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (634051306957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1175307 + ... + 1627712.

It is an arithmetic number, because the mean of its divisors is an integer number (105676657020).

Almost surely, 2^634051306857 is an apocalyptic number.

It is an amenable number.

634051306857 is a deficient number, since it is larger than the sum of its proper divisors (211361949303).

634051306857 is a wasteful number, since it uses less digits than its factorization.

634051306857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2878423.

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 634051306857 in words is "six hundred thirty-four billion, fifty-one million, three hundred six thousand, eight hundred fifty-seven".