38323889819 has 2 divisors, whose sum is σ = 38323889820. Its totient is φ = 38323889818.

The previous prime is 38323889801. The next prime is 38323889831. The reversal of 38323889819 is 91898832383.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38323889819 is a prime.

It is a super-2 number, since 2×38323889819² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (38323889519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19161944909 + 19161944910.

It is an arithmetic number, because the mean of its divisors is an integer number (19161944910).

Almost surely, 2^38323889819 is an apocalyptic number.

38323889819 is a deficient number, since it is larger than the sum of its proper divisors (1).

38323889819 is an equidigital number, since it uses as much as digits as its factorization.

38323889819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17915904, while the sum is 62.

The spelling of 38323889819 in words is "thirty-eight billion, three hundred twenty-three million, eight hundred eighty-nine thousand, eight hundred nineteen".