2678880085 has 16 divisors (see below), whose sum is σ = 3689148672. Its totient is φ = 1829318400.

The previous prime is 2678880067. The next prime is 2678880107. The reversal of 2678880085 is 5800888762.

It is not a de Polignac number, because 2678880085 - 2¹⁷ = 2678749013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150361 + ... + 167230.

It is an arithmetic number, because the mean of its divisors is an integer number (230571792).

Almost surely, 2^2678880085 is an apocalyptic number.

It is an amenable number.

2678880085 is a deficient number, since it is larger than the sum of its proper divisors (1010268587).

2678880085 is a wasteful number, since it uses less digits than its factorization.

2678880085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317844.

The product of its (nonzero) digits is 1720320, while the sum is 52.

The square root of 2678880085 is about 51757.8987691734. The cubic root of 2678880085 is about 1388.8364026305.

The spelling of 2678880085 in words is "two billion, six hundred seventy-eight million, eight hundred eighty thousand, eighty-five".