7879867878 has 16 divisors (see below), whose sum is σ = 16303175280. Its totient is φ = 2536049376.

The previous prime is 7879867843. The next prime is 7879867901. The reversal of 7879867878 is 8787689787.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22643125 + ... + 22643472.

It is an arithmetic number, because the mean of its divisors is an integer number (1018948455).

Almost surely, 2^7879867878 is an apocalyptic number.

7879867878 is an abundant number, since it is smaller than the sum of its proper divisors (8423307402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7879867878 is a wasteful number, since it uses less digits than its factorization.

7879867878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45286631.

The product of its digits is 531062784, while the sum is 75.

The square root of 7879867878 is about 88768.6198946452. The cubic root of 7879867878 is about 1989.9384573949.

The spelling of 7879867878 in words is "seven billion, eight hundred seventy-nine million, eight hundred sixty-seven thousand, eight hundred seventy-eight".