634330752671 has 16 divisors (see below), whose sum is σ = 807680609280. Its totient is φ = 483767026080.

The previous prime is 634330752661. The next prime is 634330752743. The reversal of 634330752671 is 176257033436.

It is a cyclic number.

It is not a de Polignac number, because 634330752671 - 2⁶ = 634330752607 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634330752631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87635336 + ... + 87642573.

It is an arithmetic number, because the mean of its divisors is an integer number (50480038080).

Almost surely, 2^634330752671 is an apocalyptic number.

634330752671 is a deficient number, since it is larger than the sum of its proper divisors (173349856609).

634330752671 is a wasteful number, since it uses less digits than its factorization.

634330752671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175277974.

The product of its (nonzero) digits is 1905120, while the sum is 47.

The spelling of 634330752671 in words is "six hundred thirty-four billion, three hundred thirty million, seven hundred fifty-two thousand, six hundred seventy-one".