2160704906989 has 8 divisors (see below), whose sum is σ = 2205698428152. Its totient is φ = 2115867886080.

The previous prime is 2160704906909. The next prime is 2160704907001. The reversal of 2160704906989 is 9896094070612.

It can be written as a sum of positive squares in 4 ways, for example, as 598634089 + 2160106272900 = 24467^2 + 1469730^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2160704906989 - 2⁷ = 2160704906861 is a prime.

It is a super-2 number, since 2×2160704906989² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160704906909) 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, 39097164 + ... + 39152389.

It is an arithmetic number, because the mean of its divisors is an integer number (275712303519).

Almost surely, 2^{2160704906989} is an apocalyptic number.

It is an amenable number.

2160704906989 is a deficient number, since it is larger than the sum of its proper divisors (44993521163).

2160704906989 is an equidigital number, since it uses as much as digits as its factorization.

2160704906989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78250127.

The product of its (nonzero) digits is 11757312, while the sum is 61.

The spelling of 2160704906989 in words is "two trillion, one hundred sixty billion, seven hundred four million, nine hundred six thousand, nine hundred eighty-nine".