638107832083 has 2 divisors, whose sum is σ = 638107832084. Its totient is φ = 638107832082.

The previous prime is 638107832069. The next prime is 638107832099. The reversal of 638107832083 is 380238701836.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-638107832083 is a prime.

It is a super-2 number, since 2×638107832083² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (638107832783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319053916041 + 319053916042.

It is an arithmetic number, because the mean of its divisors is an integer number (319053916042).

Almost surely, 2^638107832083 is an apocalyptic number.

638107832083 is a deficient number, since it is larger than the sum of its proper divisors (1).

638107832083 is an equidigital number, since it uses as much as digits as its factorization.

638107832083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 638107832083 in words is "six hundred thirty-eight billion, one hundred seven million, eight hundred thirty-two thousand, eighty-three".