1798066863 has 32 divisors (see below), whose sum is σ = 2831915520. Its totient is φ = 1123632000.

The previous prime is 1798066859. The next prime is 1798066877. The reversal of 1798066863 is 3686608971.

It is a happy number.

It is not a de Polignac number, because 1798066863 - 2² = 1798066859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1798066063) 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 in 31 ways as a sum of consecutive naturals, for example, 107406 + ... + 123012.

It is an arithmetic number, because the mean of its divisors is an integer number (88497360).

Almost surely, 2^1798066863 is an apocalyptic number.

1798066863 is a deficient number, since it is larger than the sum of its proper divisors (1033848657).

1798066863 is a wasteful number, since it uses less digits than its factorization.

1798066863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15884 (or 15878 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 1798066863 is about 42403.6185130467. The cubic root of 1798066863 is about 1216.0047716568.

The spelling of 1798066863 in words is "one billion, seven hundred ninety-eight million, sixty-six thousand, eight hundred sixty-three".