634570487634 has 16 divisors (see below), whose sum is σ = 1275785694720. Its totient is φ = 210416042640.

The previous prime is 634570487591. The next prime is 634570487687. The reversal of 634570487634 is 436784075436.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 276862069 + ... + 276864360.

It is an arithmetic number, because the mean of its divisors is an integer number (79736605920).

Almost surely, 2^634570487634 is an apocalyptic number.

634570487634 is an abundant number, since it is smaller than the sum of its proper divisors (641215207086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

634570487634 is a wasteful number, since it uses less digits than its factorization.

634570487634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553726625.

The product of its (nonzero) digits is 40642560, while the sum is 57.

The spelling of 634570487634 in words is "six hundred thirty-four billion, five hundred seventy million, four hundred eighty-seven thousand, six hundred thirty-four".