2820668245 has 8 divisors (see below), whose sum is σ = 3386169216. Its totient is φ = 2255623056.

The previous prime is 2820668239. The next prime is 2820668251. The reversal of 2820668245 is 5428660282.

It is an interprime number because it is at equal distance from previous prime (2820668239) and next prime (2820668251).

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 2820668245 - 2⁷ = 2820668117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100177 + ... + 125206.

It is an arithmetic number, because the mean of its divisors is an integer number (423271152).

Almost surely, 2^2820668245 is an apocalyptic number.

It is an amenable number.

2820668245 is a deficient number, since it is larger than the sum of its proper divisors (565500971).

2820668245 is a wasteful number, since it uses less digits than its factorization.

2820668245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227891.

The product of its (nonzero) digits is 368640, while the sum is 43.

The square root of 2820668245 is about 53109.9637073873. The cubic root of 2820668245 is about 1412.9192314995.

The spelling of 2820668245 in words is "two billion, eight hundred twenty million, six hundred sixty-eight thousand, two hundred forty-five".