2509118894 has 8 divisors (see below), whose sum is σ = 3767131368. Its totient is φ = 1253408440.

The previous prime is 2509118881. The next prime is 2509118897. The reversal of 2509118894 is 4988119052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2509118897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572777 + ... + 577140.

It is an arithmetic number, because the mean of its divisors is an integer number (470891421).

Almost surely, 2^2509118894 is an apocalyptic number.

2509118894 is a deficient number, since it is larger than the sum of its proper divisors (1258012474).

2509118894 is a wasteful number, since it uses less digits than its factorization.

2509118894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151010.

The product of its (nonzero) digits is 207360, while the sum is 47.

The square root of 2509118894 is about 50091.1059370823. The cubic root of 2509118894 is about 1358.8569717629.

The spelling of 2509118894 in words is "two billion, five hundred nine million, one hundred eighteen thousand, eight hundred ninety-four".