1868699983 has 2 divisors, whose sum is σ = 1868699984. Its totient is φ = 1868699982.

The previous prime is 1868699969. The next prime is 1868700007. The reversal of 1868699983 is 3899968681.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1868699983 - 2²¹ = 1866602831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1868699923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 934349991 + 934349992.

It is an arithmetic number, because the mean of its divisors is an integer number (934349992).

Almost surely, 2^1868699983 is an apocalyptic number.

1868699983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1868699983 is an equidigital number, since it uses as much as digits as its factorization.

1868699983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40310784, while the sum is 67.

The square root of 1868699983 is about 43228.4626490464. The cubic root of 1868699983 is about 1231.7234049664.

The spelling of 1868699983 in words is "one billion, eight hundred sixty-eight million, six hundred ninety-nine thousand, nine hundred eighty-three".