27384268819 has 2 divisors, whose sum is σ = 27384268820. Its totient is φ = 27384268818.

The previous prime is 27384268781. The next prime is 27384268853. The reversal of 27384268819 is 91886248372.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27384268819 - 2¹¹ = 27384266771 is a prime.

It is a super-2 number, since 2×27384268819² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27384268889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13692134409 + 13692134410.

It is an arithmetic number, because the mean of its divisors is an integer number (13692134410).

Almost surely, 2^27384268819 is an apocalyptic number.

27384268819 is a deficient number, since it is larger than the sum of its proper divisors (1).

27384268819 is an equidigital number, since it uses as much as digits as its factorization.

27384268819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9289728, while the sum is 58.

The spelling of 27384268819 in words is "twenty-seven billion, three hundred eighty-four million, two hundred sixty-eight thousand, eight hundred nineteen".