38663477436613 has 2 divisors, whose sum is σ = 38663477436614. Its totient is φ = 38663477436612.

The previous prime is 38663477436611. The next prime is 38663477436673. The reversal of 38663477436613 is 31663477436683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23667670393249 + 14995807043364 = 4864943^2 + 3872442^2 .

It is a cyclic number.

It is not a de Polignac number, because 38663477436613 - 2¹ = 38663477436611 is a prime.

Together with 38663477436611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38663477436611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19331738718306 + 19331738718307.

It is an arithmetic number, because the mean of its divisors is an integer number (19331738718307).

Almost surely, 2^{38663477436613} is an apocalyptic number.

It is an amenable number.

38663477436613 is a deficient number, since it is larger than the sum of its proper divisors (1).

38663477436613 is an equidigital number, since it uses as much as digits as its factorization.

38663477436613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 658409472, while the sum is 67.

The spelling of 38663477436613 in words is "thirty-eight trillion, six hundred sixty-three billion, four hundred seventy-seven million, four hundred thirty-six thousand, six hundred thirteen".