18373911419 has 2 divisors, whose sum is σ = 18373911420. Its totient is φ = 18373911418.

The previous prime is 18373911359. The next prime is 18373911433. The reversal of 18373911419 is 91411937381.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18373911419 - 2⁸ = 18373911163 is a prime.

It is a super-2 number, since 2×18373911419² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18373911469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9186955709 + 9186955710.

It is an arithmetic number, because the mean of its divisors is an integer number (9186955710).

Almost surely, 2^18373911419 is an apocalyptic number.

18373911419 is a deficient number, since it is larger than the sum of its proper divisors (1).

18373911419 is an equidigital number, since it uses as much as digits as its factorization.

18373911419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 47.

The spelling of 18373911419 in words is "eighteen billion, three hundred seventy-three million, nine hundred eleven thousand, four hundred nineteen".