2168458806 has 8 divisors (see below), whose sum is σ = 4336917624. Its totient is φ = 722819600.

The previous prime is 2168458781. The next prime is 2168458811. The reversal of 2168458806 is 6088548612.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

2168458806 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180704895 + ... + 180704906.

It is an arithmetic number, because the mean of its divisors is an integer number (542114703).

Almost surely, 2^2168458806 is an apocalyptic number.

2168458806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2168458806 is a wasteful number, since it uses less digits than its factorization.

2168458806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361409806.

The product of its (nonzero) digits is 737280, while the sum is 48.

The square root of 2168458806 is about 46566.7134979483. The cubic root of 2168458806 is about 1294.3460184348.

The spelling of 2168458806 in words is "two billion, one hundred sixty-eight million, four hundred fifty-eight thousand, eight hundred six".