638368682114 has 8 divisors (see below), whose sum is σ = 957804823440. Its totient is φ = 319100407636.

The previous prime is 638368682113. The next prime is 638368682117. The reversal of 638368682114 is 411286863836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 638368682114.

It is not an unprimeable number, because it can be changed into a prime (638368682113) 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, 41957204 + ... + 41972415.

It is an arithmetic number, because the mean of its divisors is an integer number (119725602930).

Almost surely, 2^638368682114 is an apocalyptic number.

638368682114 is a deficient number, since it is larger than the sum of its proper divisors (319436141326).

638368682114 is a wasteful number, since it uses less digits than its factorization.

638368682114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83933424.

The product of its digits is 7962624, while the sum is 56.

The spelling of 638368682114 in words is "six hundred thirty-eight billion, three hundred sixty-eight million, six hundred eighty-two thousand, one hundred fourteen".