2783049881 has 2 divisors, whose sum is σ = 2783049882. Its totient is φ = 2783049880.

The previous prime is 2783049877. The next prime is 2783050013. The reversal of 2783049881 is 1889403872.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2704000000 + 79049881 = 52000^2 + 8891^2 .

It is a cyclic number.

It is not a de Polignac number, because 2783049881 - 2² = 2783049877 is a prime.

It is a super-2 number, since 2×2783049881² = 15490733280268228322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2783049851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1391524940 + 1391524941.

It is an arithmetic number, because the mean of its divisors is an integer number (1391524941).

Almost surely, 2^2783049881 is an apocalyptic number.

It is an amenable number.

2783049881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2783049881 is an equidigital number, since it uses as much as digits as its factorization.

2783049881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 2783049881 is about 52754.6195228437. The cubic root of 2783049881 is about 1406.6098796047.

The spelling of 2783049881 in words is "two billion, seven hundred eighty-three million, forty-nine thousand, eight hundred eighty-one".