2809880345 has 8 divisors (see below), whose sum is σ = 3372430464. Its totient is φ = 2247521584.

The previous prime is 2809880299. The next prime is 2809880351. The reversal of 2809880345 is 5430889082.

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 2809880345 - 2¹⁴ = 2809863961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2809880345.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13259 + ... + 76128.

It is an arithmetic number, because the mean of its divisors is an integer number (421553808).

Almost surely, 2^2809880345 is an apocalyptic number.

It is an amenable number.

2809880345 is a deficient number, since it is larger than the sum of its proper divisors (562550119).

2809880345 is an equidigital number, since it uses as much as digits as its factorization.

2809880345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95679.

The product of its (nonzero) digits is 552960, while the sum is 47.

The square root of 2809880345 is about 53008.3044909003. The cubic root of 2809880345 is about 1411.1156512290.

The spelling of 2809880345 in words is "two billion, eight hundred nine million, eight hundred eighty thousand, three hundred forty-five".