2878773897 has 16 divisors (see below), whose sum is σ = 4096161792. Its totient is φ = 1792062720.

The previous prime is 2878773871. The next prime is 2878773913. The reversal of 2878773897 is 7983778782.

2878773897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2878773897 - 2¹⁰ = 2878772873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2878773397) 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, 215754 + ... + 228707.

It is an arithmetic number, because the mean of its divisors is an integer number (256010112).

Almost surely, 2^2878773897 is an apocalyptic number.

It is an amenable number.

2878773897 is a deficient number, since it is larger than the sum of its proper divisors (1217387895).

2878773897 is a wasteful number, since it uses less digits than its factorization.

2878773897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444608.

The product of its digits is 66382848, while the sum is 66.

The square root of 2878773897 is about 53654.2067036686. The cubic root of 2878773897 is about 1422.5553895468. Note that the first 3 decimals are identical.

The spelling of 2878773897 in words is "two billion, eight hundred seventy-eight million, seven hundred seventy-three thousand, eight hundred ninety-seven".