2878215964 has 12 divisors (see below), whose sum is σ = 5424330184. Its totient is φ = 1328407344.

The previous prime is 2878215919. The next prime is 2878215973. The reversal of 2878215964 is 4695128782.

2878215964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 55350307 = 2878215964 / (2 + 8 + 7 + 8 + 2 + 1 + 5 + 9 + 6 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27675102 + ... + 27675205.

Almost surely, 2^2878215964 is an apocalyptic number.

It is an amenable number.

2878215964 is a deficient number, since it is larger than the sum of its proper divisors (2546114220).

2878215964 is a wasteful number, since it uses less digits than its factorization.

2878215964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55350324 (or 55350322 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 52.

The square root of 2878215964 is about 53649.0071110361. The cubic root of 2878215964 is about 1422.4634821463.

The spelling of 2878215964 in words is "two billion, eight hundred seventy-eight million, two hundred fifteen thousand, nine hundred sixty-four".