2793344881 has 2 divisors, whose sum is σ = 2793344882. Its totient is φ = 2793344880.

The previous prime is 2793344839. The next prime is 2793344909. The reversal of 2793344881 is 1884433972.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2471680656 + 321664225 = 49716^2 + 17935^2 .

It is a cyclic number.

It is not a de Polignac number, because 2793344881 - 2⁷ = 2793344753 is a prime.

It is a super-2 number, since 2×2793344881² = 15605551248417808322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2793344821) by changing a digit.

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 as a sum of consecutive naturals, namely, 1396672440 + 1396672441.

It is an arithmetic number, because the mean of its divisors is an integer number (1396672441).

Almost surely, 2^2793344881 is an apocalyptic number.

It is an amenable number.

2793344881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2793344881 is an equidigital number, since it uses as much as digits as its factorization.

2793344881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 49.

The square root of 2793344881 is about 52852.1038464885. The cubic root of 2793344881 is about 1408.3421792923.

The spelling of 2793344881 in words is "two billion, seven hundred ninety-three million, three hundred forty-four thousand, eight hundred eighty-one".