11243210858 has 24 divisors (see below), whose sum is σ = 18544816164. Its totient is φ = 5108495040.

The previous prime is 11243210857. The next prime is 11243210963. The reversal of 11243210858 is 85801234211.

It can be written as a sum of positive squares in 2 ways, for example, as 11204857609 + 38353249 = 105853^2 + 6193^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11243210857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 706760 + ... + 722492.

Almost surely, 2^11243210858 is an apocalyptic number.

11243210858 is a deficient number, since it is larger than the sum of its proper divisors (7301605306).

11243210858 is a wasteful number, since it uses less digits than its factorization.

11243210858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18710 (or 18699 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The spelling of 11243210858 in words is "eleven billion, two hundred forty-three million, two hundred ten thousand, eight hundred fifty-eight".