2780583361 has 4 divisors (see below), whose sum is σ = 2833047252. Its totient is φ = 2728119472.

The previous prime is 2780583353. The next prime is 2780583371. The reversal of 2780583361 is 1633850872.

2780583361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 987907761 + 1792675600 = 31431^2 + 42340^2 .

It is a cyclic number.

It is not a de Polignac number, because 2780583361 - 2³ = 2780583353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2780583341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26231866 + ... + 26231971.

It is an arithmetic number, because the mean of its divisors is an integer number (708261813).

Almost surely, 2^2780583361 is an apocalyptic number.

It is an amenable number.

2780583361 is a deficient number, since it is larger than the sum of its proper divisors (52463891).

2780583361 is an equidigital number, since it uses as much as digits as its factorization.

2780583361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52463890.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 2780583361 is about 52731.2370516755. The cubic root of 2780583361 is about 1406.1942136987.

The spelling of 2780583361 in words is "two billion, seven hundred eighty million, five hundred eighty-three thousand, three hundred sixty-one".