638005369483 has 2 divisors, whose sum is σ = 638005369484. Its totient is φ = 638005369482.

The previous prime is 638005369381. The next prime is 638005369513. The reversal of 638005369483 is 384963500836.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-638005369483 is a prime.

It is not a weakly prime, because it can be changed into another prime (638005969483) 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, 319002684741 + 319002684742.

It is an arithmetic number, because the mean of its divisors is an integer number (319002684742).

Almost surely, 2^638005369483 is an apocalyptic number.

638005369483 is a deficient number, since it is larger than the sum of its proper divisors (1).

638005369483 is an equidigital number, since it uses as much as digits as its factorization.

638005369483 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11197440, while the sum is 55.

The spelling of 638005369483 in words is "six hundred thirty-eight billion, five million, three hundred sixty-nine thousand, four hundred eighty-three".