2818393161330 has 64 divisors (see below), whose sum is σ = 6988348182528. Its totient is φ = 726701599680.

The previous prime is 2818393161293. The next prime is 2818393161377. The reversal of 2818393161330 is 331613938182.

It is a super-2 number, since 2×2818393161330² (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 2818393161330.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221304 + ... + 2384483.

It is an arithmetic number, because the mean of its divisors is an integer number (109192940352).

Almost surely, 2^{2818393161330} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2818393161330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3494174091264).

2818393161330 is an abundant number, since it is smaller than the sum of its proper divisors (4169955021198).

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

2818393161330 is a wasteful number, since it uses less digits than its factorization.

2818393161330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606991.

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 2818393161330 in words is "two trillion, eight hundred eighteen billion, three hundred ninety-three million, one hundred sixty-one thousand, three hundred thirty".