1395818818832 has 20 divisors (see below), whose sum is σ = 2797654099020. Its totient is φ = 673843567488.

The previous prime is 1395818818829. The next prime is 1395818818853. The reversal of 1395818818832 is 2388188185931.

It can be written as a sum of positive squares in 2 ways, for example, as 834014603536 + 561804215296 = 913244^2 + 749536^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1504114643 + ... + 1504115570.

It is an arithmetic number, because the mean of its divisors is an integer number (139882704951).

Almost surely, 2^{1395818818832} is an apocalyptic number.

It is an amenable number.

1395818818832 is an abundant number, since it is smaller than the sum of its proper divisors (1401835280188).

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

1395818818832 is a wasteful number, since it uses less digits than its factorization.

1395818818832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008230250 (or 3008230244 counting only the distinct ones).

The product of its digits is 26542080, while the sum is 65.

The spelling of 1395818818832 in words is "one trillion, three hundred ninety-five billion, eight hundred eighteen million, eight hundred eighteen thousand, eight hundred thirty-two".