10856306643 has 32 divisors (see below), whose sum is σ = 17821418496. Its totient is φ = 5724494208.

The previous prime is 10856306627. The next prime is 10856306663. The reversal of 10856306643 is 34660365801.

10856306643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10856306643 - 2⁴ = 10856306627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10856306595 and 10856306604.

It is not an unprimeable number, because it can be changed into a prime (10856306663) 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 31 ways as a sum of consecutive naturals, for example, 1246821 + ... + 1255497.

It is an arithmetic number, because the mean of its divisors is an integer number (556919328).

Almost surely, 2^10856306643 is an apocalyptic number.

10856306643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10856306643 is a deficient number, since it is larger than the sum of its proper divisors (6965111853).

10856306643 is a wasteful number, since it uses less digits than its factorization.

10856306643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13283.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 10856306643 in words is "ten billion, eight hundred fifty-six million, three hundred six thousand, six hundred forty-three".