38566379983 has 2 divisors, whose sum is σ = 38566379984. Its totient is φ = 38566379982.

The previous prime is 38566379981. The next prime is 38566380007. The reversal of 38566379983 is 38997366583.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38566379983 - 2¹ = 38566379981 is a prime.

Together with 38566379981, 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 (38566379981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19283189991 + 19283189992.

It is an arithmetic number, because the mean of its divisors is an integer number (19283189992).

Almost surely, 2^38566379983 is an apocalyptic number.

38566379983 is a deficient number, since it is larger than the sum of its proper divisors (1).

38566379983 is an equidigital number, since it uses as much as digits as its factorization.

38566379983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 176359680, while the sum is 67.

The spelling of 38566379983 in words is "thirty-eight billion, five hundred sixty-six million, three hundred seventy-nine thousand, nine hundred eighty-three".