2318928858440 has 16 divisors (see below), whose sum is σ = 5217589931580. Its totient is φ = 927571543360.

The previous prime is 2318928858391. The next prime is 2318928858461. The reversal of 2318928858440 is 448588298132.

It can be written as a sum of positive squares in 2 ways, for example, as 2318085420676 + 843437764 = 1522526^2 + 29042^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28986610691 + ... + 28986610770.

Almost surely, 2^{2318928858440} is an apocalyptic number.

2318928858440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2318928858440 is an abundant number, since it is smaller than the sum of its proper divisors (2898661073140).

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

2318928858440 is a wasteful number, since it uses less digits than its factorization.

2318928858440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57973221472 (or 57973221468 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 62.

The spelling of 2318928858440 in words is "two trillion, three hundred eighteen billion, nine hundred twenty-eight million, eight hundred fifty-eight thousand, four hundred forty".