2318020157844 has 144 divisors (see below), whose sum is σ = 6253604098560. Its totient is φ = 723948606720.

The previous prime is 2318020157839. The next prime is 2318020157867. The reversal of 2318020157844 is 4487510208132.

2318020157844 is a `hidden beast` number, since 2 + 3 + 18 + 0 + 20 + 1 + 578 + 44 = 666.

It is a super-2 number, since 2×2318020157844² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2318020157844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39412179 + ... + 39470949.

It is an arithmetic number, because the mean of its divisors is an integer number (43427806240).

Almost surely, 2^{2318020157844} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2318020157844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3126802049280).

2318020157844 is an abundant number, since it is smaller than the sum of its proper divisors (3935583940716).

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

2318020157844 is a wasteful number, since it uses less digits than its factorization.

2318020157844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59055 (or 59016 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 2318020157844 in words is "two trillion, three hundred eighteen billion, twenty million, one hundred fifty-seven thousand, eight hundred forty-four".