2290786561 has 8 divisors (see below), whose sum is σ = 2618685440. Its totient is φ = 1963048608.

The previous prime is 2290786541. The next prime is 2290786573. The reversal of 2290786561 is 1656870922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2290786561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2290786541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8001 + ... + 68158.

It is an arithmetic number, because the mean of its divisors is an integer number (327335680).

Almost surely, 2^2290786561 is an apocalyptic number.

It is an amenable number.

2290786561 is a deficient number, since it is larger than the sum of its proper divisors (327898879).

2290786561 is an equidigital number, since it uses as much as digits as its factorization.

2290786561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80463.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 2290786561 is about 47862.1621011839. The cubic root of 2290786561 is about 1318.2411838923.

The spelling of 2290786561 in words is "two billion, two hundred ninety million, seven hundred eighty-six thousand, five hundred sixty-one".