638822034104 has 32 divisors (see below), whose sum is σ = 1323390921120. Its totient is φ = 287551604736.

The previous prime is 638822034089. The next prime is 638822034107. The reversal of 638822034104 is 401430228836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (638822034107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102110369 + ... + 102116624.

It is an arithmetic number, because the mean of its divisors is an integer number (41355966285).

Almost surely, 2^638822034104 is an apocalyptic number.

It is an amenable number.

638822034104 is an abundant number, since it is smaller than the sum of its proper divisors (684568887016).

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

638822034104 is a wasteful number, since it uses less digits than its factorization.

638822034104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204227039 (or 204227035 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 638822034104 in words is "six hundred thirty-eight billion, eight hundred twenty-two million, thirty-four thousand, one hundred four".