18674831419 has 2 divisors, whose sum is σ = 18674831420. Its totient is φ = 18674831418.

The previous prime is 18674831389. The next prime is 18674831431. The reversal of 18674831419 is 91413847681.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18674831419 - 2⁷ = 18674831291 is a prime.

It is a super-2 number, since 2×18674831419² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18674831479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9337415709 + 9337415710.

It is an arithmetic number, because the mean of its divisors is an integer number (9337415710).

Almost surely, 2^18674831419 is an apocalyptic number.

18674831419 is a deficient number, since it is larger than the sum of its proper divisors (1).

18674831419 is an equidigital number, since it uses as much as digits as its factorization.

18674831419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 52.

The spelling of 18674831419 in words is "eighteen billion, six hundred seventy-four million, eight hundred thirty-one thousand, four hundred nineteen".