2878582864 has 40 divisors (see below), whose sum is σ = 5644166528. Its totient is φ = 1422074880.

The previous prime is 2878582829. The next prime is 2878582873. The reversal of 2878582864 is 4682858782.

It is a junction number, because it is equal to n+sod(n) for n = 2878582799 and 2878582808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1257529 + ... + 1259815.

Almost surely, 2^2878582864 is an apocalyptic number.

It is an amenable number.

2878582864 is a deficient number, since it is larger than the sum of its proper divisors (2765583664).

2878582864 is a wasteful number, since it uses less digits than its factorization.

2878582864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3203 (or 3197 counting only the distinct ones).

The product of its digits is 13762560, while the sum is 58.

The square root of 2878582864 is about 53652.4264502548. The cubic root of 2878582864 is about 1422.5239223267.

The spelling of 2878582864 in words is "two billion, eight hundred seventy-eight million, five hundred eighty-two thousand, eight hundred sixty-four".