634838838436 has 48 divisors (see below), whose sum is σ = 1276549263360. Its totient is φ = 273204882720.

The previous prime is 634838838419. The next prime is 634838838497.

634838838436 is nontrivially palindromic in base 10.

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 15 ways as a sum of consecutive naturals, for example, 1107181 + ... + 1579723.

It is an arithmetic number, because the mean of its divisors is an integer number (26594776320).

Almost surely, 2^634838838436 is an apocalyptic number.

It is an amenable number.

634838838436 is an abundant number, since it is smaller than the sum of its proper divisors (641710424924).

634838838436 is a wasteful number, since it uses less digits than its factorization.

634838838436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474184 (or 474182 counting only the distinct ones).

The product of its digits is 191102976, while the sum is 64.

The spelling of 634838838436 in words is "six hundred thirty-four billion, eight hundred thirty-eight million, eight hundred thirty-eight thousand, four hundred thirty-six".