2318928858438 has 16 divisors (see below), whose sum is σ = 4637903054400. Its totient is φ = 772968729896.

The previous prime is 2318928858391. The next prime is 2318928858461. The reversal of 2318928858438 is 8348588298132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1205088 + ... + 2467811.

It is an arithmetic number, because the mean of its divisors is an integer number (289868940900).

Almost surely, 2^{2318928858438} is an apocalyptic number.

2318928858438 is an abundant number, since it is smaller than the sum of its proper divisors (2318974195962).

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

2318928858438 is a wasteful number, since it uses less digits than its factorization.

2318928858438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3778131.

The product of its digits is 212336640, while the sum is 69.

The spelling of 2318928858438 in words is "two trillion, three hundred eighteen billion, nine hundred twenty-eight million, eight hundred fifty-eight thousand, four hundred thirty-eight".