2116890897 has 8 divisors (see below), whose sum is σ = 3079114080. Its totient is φ = 1282964160.

The previous prime is 2116890887. The next prime is 2116890901. The reversal of 2116890897 is 7980986112.

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

It is not a de Polignac number, because 2116890897 - 2¹⁵ = 2116858129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2116890827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32074072 + ... + 32074137.

It is an arithmetic number, because the mean of its divisors is an integer number (384889260).

Almost surely, 2^2116890897 is an apocalyptic number.

It is an amenable number.

2116890897 is a deficient number, since it is larger than the sum of its proper divisors (962223183).

2116890897 is a wasteful number, since it uses less digits than its factorization.

2116890897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64148223.

The product of its (nonzero) digits is 435456, while the sum is 51.

The square root of 2116890897 is about 46009.6826439827. The cubic root of 2116890897 is about 1284.0033548451.

The spelling of 2116890897 in words is "two billion, one hundred sixteen million, eight hundred ninety thousand, eight hundred ninety-seven".