2873661779 has 4 divisors (see below), whose sum is σ = 2874760800. Its totient is φ = 2872562760.

The previous prime is 2873661767. The next prime is 2873661851. The reversal of 2873661779 is 9771663782.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2873661779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2873661979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545579 + ... + 550820.

It is an arithmetic number, because the mean of its divisors is an integer number (718690200).

Almost surely, 2^2873661779 is an apocalyptic number.

2873661779 is a deficient number, since it is larger than the sum of its proper divisors (1099021).

2873661779 is a wasteful number, since it uses less digits than its factorization.

2873661779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099020.

The product of its digits is 5334336, while the sum is 56.

The square root of 2873661779 is about 53606.5460461687. The cubic root of 2873661779 is about 1421.7128340912.

The spelling of 2873661779 in words is "two billion, eight hundred seventy-three million, six hundred sixty-one thousand, seven hundred seventy-nine".