5166869946858 has 96 divisors (see below), whose sum is σ = 11851814145600. Its totient is φ = 1624012685568.

The previous prime is 5166869946827. The next prime is 5166869946907. The reversal of 5166869946858 is 8586499686615.

It is a happy number.

5166869946858 is a `hidden beast` number, since 5 + 1 + 6 + 68 + 6 + 99 + 468 + 5 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 299398566 + ... + 299415822.

It is an arithmetic number, because the mean of its divisors is an integer number (123456397350).

Almost surely, 2^{5166869946858} is an apocalyptic number.

5166869946858 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5166869946858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5925907072800).

5166869946858 is an abundant number, since it is smaller than the sum of its proper divisors (6684944198742).

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

5166869946858 is a wasteful number, since it uses less digits than its factorization.

5166869946858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30676 (or 30673 counting only the distinct ones).

The product of its digits is 5374771200, while the sum is 81.

The spelling of 5166869946858 in words is "five trillion, one hundred sixty-six billion, eight hundred sixty-nine million, nine hundred forty-six thousand, eight hundred fifty-eight".