2857877798 has 4 divisors (see below), whose sum is σ = 4286816700. Its totient is φ = 1428938898.

The previous prime is 2857877777. The next prime is 2857877821. The reversal of 2857877798 is 8977787582.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714469448 + ... + 714469451.

It is an arithmetic number, because the mean of its divisors is an integer number (1071704175).

Almost surely, 2^2857877798 is an apocalyptic number.

2857877798 is a deficient number, since it is larger than the sum of its proper divisors (1428938902).

2857877798 is a wasteful number, since it uses less digits than its factorization.

2857877798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428938901.

The product of its digits is 110638080, while the sum is 68.

The square root of 2857877798 is about 53459.1226826629. The cubic root of 2857877798 is about 1419.1050695763.

The spelling of 2857877798 in words is "two billion, eight hundred fifty-seven million, eight hundred seventy-seven thousand, seven hundred ninety-eight".