634888888436 has 12 divisors (see below), whose sum is σ = 1212060605280. Its totient is φ = 288585858360.

The previous prime is 634888888433. The next prime is 634888888471.

634888888436 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634888888433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7214646416 + ... + 7214646503.

It is an arithmetic number, because the mean of its divisors is an integer number (101005050440).

Almost surely, 2^634888888436 is an apocalyptic number.

It is an amenable number.

634888888436 is a deficient number, since it is larger than the sum of its proper divisors (577171716844).

634888888436 is a wasteful number, since it uses less digits than its factorization.

634888888436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14429292934 (or 14429292932 counting only the distinct ones).

The product of its digits is 1358954496, while the sum is 74.

The spelling of 634888888436 in words is "six hundred thirty-four billion, eight hundred eighty-eight million, eight hundred eighty-eight thousand, four hundred thirty-six".