18358422142 has 4 divisors (see below), whose sum is σ = 27537633216. Its totient is φ = 9179211070.

The previous prime is 18358422133. The next prime is 18358422151. The reversal of 18358422142 is 24122485381.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (18358422133) and next prime (18358422151).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 18358422095 and 18358422104.

It is a congruent number.

It is an unprimeable number.

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, 4589605534 + ... + 4589605537.

It is an arithmetic number, because the mean of its divisors is an integer number (6884408304).

Almost surely, 2^18358422142 is an apocalyptic number.

18358422142 is a deficient number, since it is larger than the sum of its proper divisors (9179211074).

18358422142 is an equidigital number, since it uses as much as digits as its factorization.

18358422142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9179211073.

The product of its digits is 122880, while the sum is 40.

The spelling of 18358422142 in words is "eighteen billion, three hundred fifty-eight million, four hundred twenty-two thousand, one hundred forty-two".