10265719861 has 2 divisors, whose sum is σ = 10265719862. Its totient is φ = 10265719860.

The previous prime is 10265719847. The next prime is 10265719873. The reversal of 10265719861 is 16891756201.

10265719861 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., 8720758225 + 1544961636 = 93385^2 + 39306^2 .

It is a cyclic number.

It is not a de Polignac number, because 10265719861 - 2⁷ = 10265719733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10265719561) 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 as a sum of consecutive naturals, namely, 5132859930 + 5132859931.

It is an arithmetic number, because the mean of its divisors is an integer number (5132859931).

Almost surely, 2^10265719861 is an apocalyptic number.

It is an amenable number.

10265719861 is a deficient number, since it is larger than the sum of its proper divisors (1).

10265719861 is an equidigital number, since it uses as much as digits as its factorization.

10265719861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 10265719861 in words is "ten billion, two hundred sixty-five million, seven hundred nineteen thousand, eight hundred sixty-one".