5186707866 has 24 divisors (see below), whose sum is σ = 11252435220. Its totient is φ = 1726661376.

The previous prime is 5186707853. The next prime is 5186707891. The reversal of 5186707866 is 6687076815.

5186707866 is a `hidden beast` number, since 518 + 67 + 0 + 7 + 8 + 66 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5168891025 + 17816841 = 71895^2 + 4221^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172471 + ... + 200298.

Almost surely, 2^5186707866 is an apocalyptic number.

5186707866 is an abundant number, since it is smaller than the sum of its proper divisors (6065727354).

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

5186707866 is a wasteful number, since it uses less digits than its factorization.

5186707866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373550 (or 373547 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The square root of 5186707866 is about 72018.8021699889. The cubic root of 5186707866 is about 1731.0007759409. Note that the first 3 decimals are identical.

The spelling of 5186707866 in words is "five billion, one hundred eighty-six million, seven hundred seven thousand, eight hundred sixty-six".