11570049805 has 16 divisors (see below), whose sum is σ = 14703701040. Its totient is φ = 8709829632.

The previous prime is 11570049781. The next prime is 11570049811. The reversal of 11570049805 is 50894007511.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1869178756 + 9700871049 = 43234^2 + 98493^2 .

It is a cyclic number.

It is not a de Polignac number, because 11570049805 - 2²³ = 11561661197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553891 + ... + 574399.

It is an arithmetic number, because the mean of its divisors is an integer number (918981315).

Almost surely, 2^11570049805 is an apocalyptic number.

It is an amenable number.

11570049805 is a deficient number, since it is larger than the sum of its proper divisors (3133651235).

11570049805 is a wasteful number, since it uses less digits than its factorization.

11570049805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27168.

The product of its (nonzero) digits is 50400, while the sum is 40.

The spelling of 11570049805 in words is "eleven billion, five hundred seventy million, forty-nine thousand, eight hundred five".