2318398878 has 16 divisors (see below), whose sum is σ = 4665246336. Its totient is φ = 768058200.

The previous prime is 2318398877. The next prime is 2318398889. The reversal of 2318398878 is 8788938132.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2318398877) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1184298 + ... + 1186253.

It is an arithmetic number, because the mean of its divisors is an integer number (291577896).

Almost surely, 2^2318398878 is an apocalyptic number.

2318398878 is an abundant number, since it is smaller than the sum of its proper divisors (2346847458).

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

2318398878 is a wasteful number, since it uses less digits than its factorization.

2318398878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370719.

The product of its digits is 4644864, while the sum is 57.

The square root of 2318398878 is about 48149.7547034250. The cubic root of 2318398878 is about 1323.5165794007.

The spelling of 2318398878 in words is "two billion, three hundred eighteen million, three hundred ninety-eight thousand, eight hundred seventy-eight".