11289895042 has 4 divisors (see below), whose sum is σ = 16934842566. Its totient is φ = 5644947520.

The previous prime is 11289895037. The next prime is 11289895061. The reversal of 11289895042 is 24059898211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11284600441 + 5294601 = 106229^2 + 2301^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2822473759 + ... + 2822473762.

Almost surely, 2^11289895042 is an apocalyptic number.

11289895042 is a deficient number, since it is larger than the sum of its proper divisors (5644947524).

11289895042 is an equidigital number, since it uses as much as digits as its factorization.

11289895042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5644947523.

The product of its (nonzero) digits is 414720, while the sum is 49.

The spelling of 11289895042 in words is "eleven billion, two hundred eighty-nine million, eight hundred ninety-five thousand, forty-two".