38634266243983 has 2 divisors, whose sum is σ = 38634266243984. Its totient is φ = 38634266243982.

The previous prime is 38634266243977. The next prime is 38634266244017. The reversal of 38634266243983 is 38934266243683.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38634266243983 - 2³³ = 38625676309391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38634266283983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19317133121991 + 19317133121992.

It is an arithmetic number, because the mean of its divisors is an integer number (19317133121992).

Almost surely, 2^{38634266243983} is an apocalyptic number.

38634266243983 is a deficient number, since it is larger than the sum of its proper divisors (1).

38634266243983 is an equidigital number, since it uses as much as digits as its factorization.

38634266243983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 644972544, while the sum is 67.

The spelling of 38634266243983 in words is "thirty-eight trillion, six hundred thirty-four billion, two hundred sixty-six million, two hundred forty-three thousand, nine hundred eighty-three".