2878586221 has 8 divisors (see below), whose sum is σ = 3302921664. Its totient is φ = 2457528000.

The previous prime is 2878586201. The next prime is 2878586257. The reversal of 2878586221 is 1226858782.

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 2878586221 - 2¹¹ = 2878584173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878586201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817420 + ... + 820933.

It is an arithmetic number, because the mean of its divisors is an integer number (412865208).

Almost surely, 2^2878586221 is an apocalyptic number.

It is an amenable number.

2878586221 is a deficient number, since it is larger than the sum of its proper divisors (424335443).

2878586221 is a wasteful number, since it uses less digits than its factorization.

2878586221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638611.

The product of its digits is 860160, while the sum is 49.

The square root of 2878586221 is about 53652.4577349444. The cubic root of 2878586221 is about 1422.5244753084.

The spelling of 2878586221 in words is "two billion, eight hundred seventy-eight million, five hundred eighty-six thousand, two hundred twenty-one".