225184782018 has 32 divisors (see below), whose sum is σ = 517583554560. Its totient is φ = 63979074000.

The previous prime is 225184782013. The next prime is 225184782019. The reversal of 225184782018 is 810287481522.

It is not an unprimeable number, because it can be changed into a prime (225184782013) 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, 14968858 + ... + 14983893.

It is an arithmetic number, because the mean of its divisors is an integer number (16174486080).

Almost surely, 2^225184782018 is an apocalyptic number.

225184782018 is an abundant number, since it is smaller than the sum of its proper divisors (292398772542).

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

225184782018 is a wasteful number, since it uses less digits than its factorization.

225184782018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29952942.

The product of its (nonzero) digits is 573440, while the sum is 48.

The spelling of 225184782018 in words is "two hundred twenty-five billion, one hundred eighty-four million, seven hundred eighty-two thousand, eighteen".