1808799047056 has 45 divisors (see below), whose sum is σ = 3540653778403. Its totient is φ = 895176089600.

The previous prime is 1808799047039. The next prime is 1808799047141. The reversal of 1808799047056 is 6507409978081.

The square root of 1808799047056 is 1344916.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 378574400656 + 1430224646400 = 615284^2 + 1195920^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 543344400 + ... + 543347728.

Almost surely, 2^{1808799047056} is an apocalyptic number.

1808799047056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1808799047056 is the 1344916-th square number.

It is an amenable number.

1808799047056 is a deficient number, since it is larger than the sum of its proper divisors (1731854731347).

1808799047056 is an frugal number, since it uses more digits than its factorization.

1808799047056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6868 (or 3432 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 64.

Multiplying 1808799047056 by its sum of digits (64), we get a square (115763139011584 = 10759328²).

The spelling of 1808799047056 in words is "one trillion, eight hundred eight billion, seven hundred ninety-nine million, forty-seven thousand, fifty-six".