2109873569 has 16 divisors (see below), whose sum is σ = 2245536000. Its totient is φ = 1979048064.

The previous prime is 2109873539. The next prime is 2109873583. The reversal of 2109873569 is 9653789012.

It is a cyclic number.

It is not a de Polignac number, because 2109873569 - 2⁸ = 2109873313 is a prime.

It is a super-2 number, since 2×2109873569² = 8903132954329595522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2109873509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181082 + ... + 192380.

It is an arithmetic number, because the mean of its divisors is an integer number (140346000).

Almost surely, 2^2109873569 is an apocalyptic number.

2109873569 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2109873569 is a deficient number, since it is larger than the sum of its proper divisors (135662431).

2109873569 is a wasteful number, since it uses less digits than its factorization.

2109873569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11512.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 2109873569 is about 45933.3600882844. The cubic root of 2109873569 is about 1282.5829939439.

The spelling of 2109873569 in words is "two billion, one hundred nine million, eight hundred seventy-three thousand, five hundred sixty-nine".