2656426433 has 4 divisors (see below), whose sum is σ = 2728221780. Its totient is φ = 2584631088.

The previous prime is 2656426393. The next prime is 2656426459. The reversal of 2656426433 is 3346246562.

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 2287517584 + 368908849 = 47828^2 + 19207^2 .

It is a cyclic number.

It is not a de Polignac number, because 2656426433 - 2¹² = 2656422337 is a prime.

It is a super-2 number, since 2×2656426433² = 14113202787882206978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2656426463) 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 in 3 ways as a sum of consecutive naturals, for example, 35897618 + ... + 35897691.

It is an arithmetic number, because the mean of its divisors is an integer number (682055445).

Almost surely, 2^2656426433 is an apocalyptic number.

It is an amenable number.

2656426433 is a deficient number, since it is larger than the sum of its proper divisors (71795347).

2656426433 is an equidigital number, since it uses as much as digits as its factorization.

2656426433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71795346.

The product of its digits is 622080, while the sum is 41.

The square root of 2656426433 is about 51540.5319433162. The cubic root of 2656426433 is about 1384.9452263654.

The spelling of 2656426433 in words is "two billion, six hundred fifty-six million, four hundred twenty-six thousand, four hundred thirty-three".