1868130305 has 8 divisors (see below), whose sum is σ = 2249060352. Its totient is φ = 1489634928.

The previous prime is 1868130287. The next prime is 1868130337. The reversal of 1868130305 is 5030318681.

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

It is a cyclic number.

It is not a de Polignac number, because 1868130305 - 2⁶ = 1868130241 is a prime.

It is a Duffinian number.

It is a Curzon 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, 606977 + ... + 610046.

It is an arithmetic number, because the mean of its divisors is an integer number (281132544).

Almost surely, 2^1868130305 is an apocalyptic number.

It is an amenable number.

1868130305 is a deficient number, since it is larger than the sum of its proper divisors (380930047).

1868130305 is a wasteful number, since it uses less digits than its factorization.

1868130305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217335.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1868130305 is about 43221.8729927337. The cubic root of 1868130305 is about 1231.5982275618.

Adding to 1868130305 its reverse (5030318681), we get a palindrome (6898448986).

The spelling of 1868130305 in words is "one billion, eight hundred sixty-eight million, one hundred thirty thousand, three hundred five".