2116589538 has 32 divisors (see below), whose sum is σ = 4841349120. Its totient is φ = 604311120.

The previous prime is 2116589537. The next prime is 2116589581. The reversal of 2116589538 is 8359856112.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2116589533) 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 15 ways as a sum of consecutive naturals, for example, 44653 + ... + 78911.

It is an arithmetic number, because the mean of its divisors is an integer number (151292160).

Almost surely, 2^2116589538 is an apocalyptic number.

2116589538 is an abundant number, since it is smaller than the sum of its proper divisors (2724759582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2116589538 is a wasteful number, since it uses less digits than its factorization.

2116589538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35742.

The product of its digits is 518400, while the sum is 48.

The square root of 2116589538 is about 46006.4075754671. The cubic root of 2116589538 is about 1283.9424220355.

The spelling of 2116589538 in words is "two billion, one hundred sixteen million, five hundred eighty-nine thousand, five hundred thirty-eight".