2656064786 has 8 divisors (see below), whose sum is σ = 4043561520. Its totient is φ = 1308210948.

The previous prime is 2656064759. The next prime is 2656064791. The reversal of 2656064786 is 6874606562.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9910556 + ... + 9910823.

It is an arithmetic number, because the mean of its divisors is an integer number (505445190).

Almost surely, 2^2656064786 is an apocalyptic number.

2656064786 is a deficient number, since it is larger than the sum of its proper divisors (1387496734).

2656064786 is a wasteful number, since it uses less digits than its factorization.

2656064786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19821448.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The square root of 2656064786 is about 51537.0234491671. The cubic root of 2656064786 is about 1384.8823745067.

The spelling of 2656064786 in words is "two billion, six hundred fifty-six million, sixty-four thousand, seven hundred eighty-six".