1868668303 has 2 divisors, whose sum is σ = 1868668304. Its totient is φ = 1868668302.

The previous prime is 1868668289. The next prime is 1868668309. The reversal of 1868668303 is 3038668681.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1868668303 - 2²⁵ = 1835113871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1868668309) by changing a digit.

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 as a sum of consecutive naturals, namely, 934334151 + 934334152.

It is an arithmetic number, because the mean of its divisors is an integer number (934334152).

Almost surely, 2^1868668303 is an apocalyptic number.

1868668303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1868668303 is an equidigital number, since it uses as much as digits as its factorization.

1868668303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 49.

The square root of 1868668303 is about 43228.0962222488. The cubic root of 1868668303 is about 1231.7164444737.

The spelling of 1868668303 in words is "one billion, eight hundred sixty-eight million, six hundred sixty-eight thousand, three hundred three".