2878412509 has 8 divisors (see below), whose sum is σ = 3291744960. Its totient is φ = 2465612736.

The previous prime is 2878412497. The next prime is 2878412549. The reversal of 2878412509 is 9052148782.

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 2878412509 - 2¹¹ = 2878410461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878412549) 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, 121519 + ... + 143260.

It is an arithmetic number, because the mean of its divisors is an integer number (411468120).

Almost surely, 2^2878412509 is an apocalyptic number.

It is an amenable number.

2878412509 is a deficient number, since it is larger than the sum of its proper divisors (413332451).

2878412509 is a wasteful number, since it uses less digits than its factorization.

2878412509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266339.

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 2878412509 is about 53650.8388471234. The cubic root of 2878412509 is about 1422.4958600411.

The spelling of 2878412509 in words is "two billion, eight hundred seventy-eight million, four hundred twelve thousand, five hundred nine".