7879867798 has 32 divisors (see below), whose sum is σ = 13115727360. Its totient is φ = 3520664160.

The previous prime is 7879867753. The next prime is 7879867799. The reversal of 7879867798 is 8977689787.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7879867799) 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, 384540 + ... + 404512.

It is an arithmetic number, because the mean of its divisors is an integer number (409866480).

Almost surely, 2^7879867798 is an apocalyptic number.

7879867798 is a deficient number, since it is larger than the sum of its proper divisors (5235859562).

7879867798 is a wasteful number, since it uses less digits than its factorization.

7879867798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20292.

The product of its digits is 597445632, while the sum is 76.

The square root of 7879867798 is about 88768.6194440355. The cubic root of 7879867798 is about 1989.9384506607.

The spelling of 7879867798 in words is "seven billion, eight hundred seventy-nine million, eight hundred sixty-seven thousand, seven hundred ninety-eight".