18710193423 has 4 divisors (see below), whose sum is σ = 24946924568. Its totient is φ = 12473462280.

The previous prime is 18710193391. The next prime is 18710193427. The reversal of 18710193423 is 32439101781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32439101781 = 3 ⋅10813033927.

It is not a de Polignac number, because 18710193423 - 2⁵ = 18710193391 is a prime.

It is a super-3 number, since 3×18710193423³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18710193427) 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 in 3 ways as a sum of consecutive naturals, for example, 3118365568 + ... + 3118365573.

It is an arithmetic number, because the mean of its divisors is an integer number (6236731142).

Almost surely, 2^18710193423 is an apocalyptic number.

18710193423 is a deficient number, since it is larger than the sum of its proper divisors (6236731145).

18710193423 is an equidigital number, since it uses as much as digits as its factorization.

18710193423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6236731144.

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 18710193423 in words is "eighteen billion, seven hundred ten million, one hundred ninety-three thousand, four hundred twenty-three".