2245818389178 has 256 divisors, whose sum is σ = 5664718209024. Its totient is φ = 577883013120.

The previous prime is 2245818389167. The next prime is 2245818389233. The reversal of 2245818389178 is 8719838185422.

It is a happy 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 in 127 ways as a sum of consecutive naturals, for example, 1723574475 + ... + 1723575777.

It is an arithmetic number, because the mean of its divisors is an integer number (22127805504).

Almost surely, 2^{2245818389178} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2245818389178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2832359104512).

2245818389178 is an abundant number, since it is smaller than the sum of its proper divisors (3418899819846).

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

2245818389178 is a wasteful number, since it uses less digits than its factorization.

2245818389178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829.

The product of its digits is 61931520, while the sum is 66.

The spelling of 2245818389178 in words is "two trillion, two hundred forty-five billion, eight hundred eighteen million, three hundred eighty-nine thousand, one hundred seventy-eight".