18051225786 has 64 divisors (see below), whose sum is σ = 45172224000. Its totient is φ = 5293609200.

The previous prime is 18051225781. The next prime is 18051225809. The reversal of 18051225786 is 68752215081.

18051225786 is a `hidden beast` number, since 1 + 8 + 0 + 51 + 22 + 578 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (18051225781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 471736 + ... + 508563.

It is an arithmetic number, because the mean of its divisors is an integer number (705816000).

Almost surely, 2^18051225786 is an apocalyptic number.

18051225786 is an abundant number, since it is smaller than the sum of its proper divisors (27120998214).

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

18051225786 is a wasteful number, since it uses less digits than its factorization.

18051225786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980352 (or 980346 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 45.

The spelling of 18051225786 in words is "eighteen billion, fifty-one million, two hundred twenty-five thousand, seven hundred eighty-six".