1872868663 has 2 divisors, whose sum is σ = 1872868664. Its totient is φ = 1872868662.

The previous prime is 1872868649. The next prime is 1872868687. The reversal of 1872868663 is 3668682781.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1872868663 - 2²⁵ = 1839314231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1872866663) 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, 936434331 + 936434332.

It is an arithmetic number, because the mean of its divisors is an integer number (936434332).

Almost surely, 2^1872868663 is an apocalyptic number.

1872868663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1872868663 is an equidigital number, since it uses as much as digits as its factorization.

1872868663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4644864, while the sum is 55.

The square root of 1872868663 is about 43276.6526316442. The cubic root of 1872868663 is about 1232.6386307698.

The spelling of 1872868663 in words is "one billion, eight hundred seventy-two million, eight hundred sixty-eight thousand, six hundred sixty-three".