5186706878 has 4 divisors (see below), whose sum is σ = 7780060320. Its totient is φ = 2593353438.

The previous prime is 5186706871. The next prime is 5186706881. The reversal of 5186706878 is 8786076815.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8786076815 = 5 ⋅1757215363.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5186706871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1296676718 + ... + 1296676721.

It is an arithmetic number, because the mean of its divisors is an integer number (1945015080).

Almost surely, 2^5186706878 is an apocalyptic number.

5186706878 is a deficient number, since it is larger than the sum of its proper divisors (2593353442).

5186706878 is a wasteful number, since it uses less digits than its factorization.

5186706878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593353441.

The product of its (nonzero) digits is 4515840, while the sum is 56.

The square root of 5186706878 is about 72018.7953106687. The cubic root of 5186706878 is about 1731.0006660299. Note that the first 3 decimals are identical.

The spelling of 5186706878 in words is "five billion, one hundred eighty-six million, seven hundred six thousand, eight hundred seventy-eight".