10256228989 has 4 divisors (see below), whose sum is σ = 10274446656. Its totient is φ = 10238011324.

The previous prime is 10256228963. The next prime is 10256229029. The reversal of 10256228989 is 98982265201.

10256228989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98982265201 = 2657 ⋅37253393.

It is a cyclic number.

It is not a de Polignac number, because 10256228989 - 2¹⁵ = 10256196221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10256228089) 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, 9107989 + ... + 9109114.

It is an arithmetic number, because the mean of its divisors is an integer number (2568611664).

Almost surely, 2^10256228989 is an apocalyptic number.

It is an amenable number.

10256228989 is a deficient number, since it is larger than the sum of its proper divisors (18217667).

10256228989 is an equidigital number, since it uses as much as digits as its factorization.

10256228989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18217666.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 10256228989 in words is "ten billion, two hundred fifty-six million, two hundred twenty-eight thousand, nine hundred eighty-nine".