2878096865 has 16 divisors (see below), whose sum is σ = 3949769088. Its totient is φ = 1972219776.

The previous prime is 2878096861. The next prime is 2878096943. The reversal of 2878096865 is 5686908782.

It is a cyclic number.

It is not a de Polignac number, because 2878096865 - 2² = 2878096861 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2878096861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26309 + ... + 80301.

It is an arithmetic number, because the mean of its divisors is an integer number (246860568).

Almost surely, 2^2878096865 is an apocalyptic number.

It is an amenable number.

2878096865 is a deficient number, since it is larger than the sum of its proper divisors (1071672223).

2878096865 is a wasteful number, since it uses less digits than its factorization.

2878096865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55528.

The product of its (nonzero) digits is 11612160, while the sum is 59.

The square root of 2878096865 is about 53647.8971162897. The cubic root of 2878096865 is about 1422.4438616224.

The spelling of 2878096865 in words is "two billion, eight hundred seventy-eight million, ninety-six thousand, eight hundred sixty-five".