11564917743 has 16 divisors (see below), whose sum is σ = 16889942880. Its totient is φ = 7006196736.

The previous prime is 11564917723. The next prime is 11564917757. The reversal of 11564917743 is 34771946511.

It is not a de Polignac number, because 11564917743 - 2⁵ = 11564917711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11564917692 and 11564917701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11564917723) 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, 3908230 + ... + 3911187.

It is an arithmetic number, because the mean of its divisors is an integer number (1055621430).

Almost surely, 2^11564917743 is an apocalyptic number.

11564917743 is a deficient number, since it is larger than the sum of its proper divisors (5325025137).

11564917743 is a wasteful number, since it uses less digits than its factorization.

11564917743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7819466.

The product of its digits is 635040, while the sum is 48.

The spelling of 11564917743 in words is "eleven billion, five hundred sixty-four million, nine hundred seventeen thousand, seven hundred forty-three".