10856044513 has 2 divisors, whose sum is σ = 10856044514. Its totient is φ = 10856044512.

The previous prime is 10856044499. The next prime is 10856044531. The reversal of 10856044513 is 31544065801.

It is a happy number.

Together with next prime (10856044531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9656599824 + 1199444689 = 98268^2 + 34633^2 .

It is an emirp because it is prime and its reverse (31544065801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10856044513 - 2⁵ = 10856044481 is a prime.

It is not a weakly prime, because it can be changed into another prime (10856044553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5428022256 + 5428022257.

It is an arithmetic number, because the mean of its divisors is an integer number (5428022257).

Almost surely, 2^10856044513 is an apocalyptic number.

It is an amenable number.

10856044513 is a deficient number, since it is larger than the sum of its proper divisors (1).

10856044513 is an equidigital number, since it uses as much as digits as its factorization.

10856044513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 10856044513 in words is "ten billion, eight hundred fifty-six million, forty-four thousand, five hundred thirteen".