1918022795328 has 224 divisors, whose sum is σ = 5206942973952. Its totient is φ = 622935040000.

The previous prime is 1918022795317. The next prime is 1918022795357. The reversal of 1918022795328 is 8235972208191.

It is a Cunningham number, because it is equal to 1384927²-1.

It is a super-2 number, since 2×1918022795328² (a number of 25 digits) contains 22 as substring.

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, 589977703 + ... + 589980953.

Almost surely, 2^{1918022795328} 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 1918022795328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2603471486976).

1918022795328 is an abundant number, since it is smaller than the sum of its proper divisors (3288920178624).

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

1918022795328 is a wasteful number, since it uses less digits than its factorization.

1918022795328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3833 (or 3823 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 1918022795328 in words is "one trillion, nine hundred eighteen billion, twenty-two million, seven hundred ninety-five thousand, three hundred twenty-eight".