18425242356 has 24 divisors (see below), whose sum is σ = 43000935264. Its totient is φ = 6140504160.

The previous prime is 18425242331. The next prime is 18425242373. The reversal of 18425242356 is 65324252481.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92650 + ... + 213153.

It is an arithmetic number, because the mean of its divisors is an integer number (1791705636).

Almost surely, 2^18425242356 is an apocalyptic number.

It is an amenable number.

18425242356 is an abundant number, since it is smaller than the sum of its proper divisors (24575692908).

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

18425242356 is a wasteful number, since it uses less digits than its factorization.

18425242356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310831 (or 310829 counting only the distinct ones).

The product of its digits is 460800, while the sum is 42.

The spelling of 18425242356 in words is "eighteen billion, four hundred twenty-five million, two hundred forty-two thousand, three hundred fifty-six".