638822052703 has 4 divisors (see below), whose sum is σ = 641079374728. Its totient is φ = 636564730680.

The previous prime is 638822052691. The next prime is 638822052733. The reversal of 638822052703 is 307250228836.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 638822052703 - 2²¹ = 638819955551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (638822052733) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1128660588 + ... + 1128661153.

It is an arithmetic number, because the mean of its divisors is an integer number (160269843682).

Almost surely, 2^638822052703 is an apocalyptic number.

638822052703 is a deficient number, since it is larger than the sum of its proper divisors (2257322025).

638822052703 is a wasteful number, since it uses less digits than its factorization.

638822052703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257322024.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 638822052703 in words is "six hundred thirty-eight billion, eight hundred twenty-two million, fifty-two thousand, seven hundred three".