11256344847 has 16 divisors (see below), whose sum is σ = 18192072960. Its totient is φ = 6822027000.

The previous prime is 11256344833. The next prime is 11256344851. The reversal of 11256344847 is 74844365211.

11256344847 is a `hidden beast` number, since 1 + 1 + 2 + 5 + 634 + 4 + 8 + 4 + 7 = 666.

It is not a de Polignac number, because 11256344847 - 2¹⁸ = 11256082703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11256344347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18949779 + ... + 18950372.

It is an arithmetic number, because the mean of its divisors is an integer number (1137004560).

Almost surely, 2^11256344847 is an apocalyptic number.

11256344847 is a deficient number, since it is larger than the sum of its proper divisors (6935728113).

11256344847 is a wasteful number, since it uses less digits than its factorization.

11256344847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37900171 (or 37900165 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The spelling of 11256344847 in words is "eleven billion, two hundred fifty-six million, three hundred forty-four thousand, eight hundred forty-seven".