638820010214 has 16 divisors (see below), whose sum is σ = 960617733120. Its totient is φ = 318614637960.

The previous prime is 638820010211. The next prime is 638820010247. The reversal of 638820010214 is 412010028836.

638820010214 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (638820010211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2264669 + ... + 2531079.

It is an arithmetic number, because the mean of its divisors is an integer number (60038608320).

Almost surely, 2^638820010214 is an apocalyptic number.

638820010214 is a deficient number, since it is larger than the sum of its proper divisors (321797722906).

638820010214 is a wasteful number, since it uses less digits than its factorization.

638820010214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269395.

The product of its (nonzero) digits is 18432, while the sum is 35.

The spelling of 638820010214 in words is "six hundred thirty-eight billion, eight hundred twenty million, ten thousand, two hundred fourteen".