2878911217 has 16 divisors (see below), whose sum is σ = 3729765760. Its totient is φ = 2157933312.

The previous prime is 2878911181. The next prime is 2878911239. The reversal of 2878911217 is 7121198782.

It is a cyclic number.

It is not a de Polignac number, because 2878911217 - 2⁷ = 2878911089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2878915217) 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 15 ways as a sum of consecutive naturals, for example, 830808 + ... + 834265.

It is an arithmetic number, because the mean of its divisors is an integer number (233110360).

Almost surely, 2^2878911217 is an apocalyptic number.

It is an amenable number.

2878911217 is a deficient number, since it is larger than the sum of its proper divisors (850854543).

2878911217 is a wasteful number, since it uses less digits than its factorization.

2878911217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665112.

The product of its digits is 112896, while the sum is 46.

The square root of 2878911217 is about 53655.4863643971. The cubic root of 2878911217 is about 1422.5780082272.

The spelling of 2878911217 in words is "two billion, eight hundred seventy-eight million, nine hundred eleven thousand, two hundred seventeen".