18336025842 has 32 divisors (see below), whose sum is σ = 38116999872. Its totient is φ = 5875164864.

The previous prime is 18336025817. The next prime is 18336025843. The reversal of 18336025842 is 24852063381.

It is a junction number, because it is equal to n+sod(n) for n = 18336025794 and 18336025803.

It is not an unprimeable number, because it can be changed into a prime (18336025843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479133 + ... + 515984.

It is an arithmetic number, because the mean of its divisors is an integer number (1191156246).

Almost surely, 2^18336025842 is an apocalyptic number.

18336025842 is an abundant number, since it is smaller than the sum of its proper divisors (19780974030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18336025842 is a wasteful number, since it uses less digits than its factorization.

18336025842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995242.

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 18336025842 in words is "eighteen billion, three hundred thirty-six million, twenty-five thousand, eight hundred forty-two".