10856208457 has 2 divisors, whose sum is σ = 10856208458. Its totient is φ = 10856208456.

The previous prime is 10856208431. The next prime is 10856208469. The reversal of 10856208457 is 75480265801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10623218761 + 232989696 = 103069^2 + 15264^2 .

It is a cyclic number.

It is not a de Polignac number, because 10856208457 - 2²³ = 10847819849 is a prime.

It is not a weakly prime, because it can be changed into another prime (10856248457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5428104228 + 5428104229.

It is an arithmetic number, because the mean of its divisors is an integer number (5428104229).

Almost surely, 2^10856208457 is an apocalyptic number.

It is an amenable number.

10856208457 is a deficient number, since it is larger than the sum of its proper divisors (1).

10856208457 is an equidigital number, since it uses as much as digits as its factorization.

10856208457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 10856208457 in words is "ten billion, eight hundred fifty-six million, two hundred eight thousand, four hundred fifty-seven".