11256071709 has 16 divisors (see below), whose sum is σ = 15141708288. Its totient is φ = 7437502512.

The previous prime is 11256071677. The next prime is 11256071719. The reversal of 11256071709 is 90717065211.

11256071709 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 11256071709 - 2⁵ = 11256071677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11256071719) 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 15 ways as a sum of consecutive naturals, for example, 141474 + ... + 206220.

It is an arithmetic number, because the mean of its divisors is an integer number (946356768).

Almost surely, 2^11256071709 is an apocalyptic number.

It is an amenable number.

11256071709 is a deficient number, since it is larger than the sum of its proper divisors (3885636579).

11256071709 is a wasteful number, since it uses less digits than its factorization.

11256071709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65264.

The product of its (nonzero) digits is 26460, while the sum is 39.

The spelling of 11256071709 in words is "eleven billion, two hundred fifty-six million, seventy-one thousand, seven hundred nine".