2656012613 has 2 divisors, whose sum is σ = 2656012614. Its totient is φ = 2656012612.

The previous prime is 2656012573. The next prime is 2656012633. The reversal of 2656012613 is 3162106562.

2656012613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2269379044 + 386633569 = 47638^2 + 19663^2 .

It is a cyclic number.

It is not a de Polignac number, because 2656012613 - 2⁶ = 2656012549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2656012613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2656012633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328006306 + 1328006307.

It is an arithmetic number, because the mean of its divisors is an integer number (1328006307).

Almost surely, 2^2656012613 is an apocalyptic number.

It is an amenable number.

2656012613 is a deficient number, since it is larger than the sum of its proper divisors (1).

2656012613 is an equidigital number, since it uses as much as digits as its factorization.

2656012613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 2656012613 is about 51536.5172765875. The cubic root of 2656012613 is about 1384.8733067131.

The spelling of 2656012613 in words is "two billion, six hundred fifty-six million, twelve thousand, six hundred thirteen".