2878787879 has 8 divisors (see below), whose sum is σ = 3143387520. Its totient is φ = 2614670200.

The previous prime is 2878787843. The next prime is 2878787897. The reversal of 2878787879 is 9787878782.

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 2878787879 - 2⁸ = 2878787623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878787819) 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, 107939 + ... + 131940.

It is an arithmetic number, because the mean of its divisors is an integer number (392923440).

Almost surely, 2^2878787879 is an apocalyptic number.

2878787879 is a deficient number, since it is larger than the sum of its proper divisors (264599641).

2878787879 is a wasteful number, since it uses less digits than its factorization.

2878787879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240981.

The product of its digits is 177020928, while the sum is 71.

The square root of 2878787879 is about 53654.3370008427. The cubic root of 2878787879 is about 1422.5576926265.

The spelling of 2878787879 in words is "two billion, eight hundred seventy-eight million, seven hundred eighty-seven thousand, eight hundred seventy-nine".