2878888665 has 8 divisors (see below), whose sum is σ = 4606221888. Its totient is φ = 1535407280.

The previous prime is 2878888643. The next prime is 2878888669. The reversal of 2878888665 is 5668888782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2878888665 - 2¹¹ = 2878886617 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2878888596 and 2878888605.

It is not an unprimeable number, because it can be changed into a prime (2878888669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95962941 + ... + 95962970.

It is an arithmetic number, because the mean of its divisors is an integer number (575777736).

Almost surely, 2^2878888665 is an apocalyptic number.

It is an amenable number.

2878888665 is a deficient number, since it is larger than the sum of its proper divisors (1727333223).

2878888665 is a wasteful number, since it uses less digits than its factorization.

2878888665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191925919.

The product of its digits is 82575360, while the sum is 66.

The square root of 2878888665 is about 53655.2762084028. The cubic root of 2878888665 is about 1422.5742936211.

The spelling of 2878888665 in words is "two billion, eight hundred seventy-eight million, eight hundred eighty-eight thousand, six hundred sixty-five".