1798868688971 has 4 divisors (see below), whose sum is σ = 1837142490912. Its totient is φ = 1760594887032.

The previous prime is 1798868688817. The next prime is 1798868689021.

1798868688971 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1798868688971 - 2¹⁰ = 1798868687947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1798868688571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19136900900 + ... + 19136900993.

It is an arithmetic number, because the mean of its divisors is an integer number (459285622728).

Almost surely, 2^{1798868688971} is an apocalyptic number.

1798868688971 is a deficient number, since it is larger than the sum of its proper divisors (38273801941).

1798868688971 is an equidigital number, since it uses as much as digits as its factorization.

1798868688971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38273801940.

The product of its digits is 4682022912, while the sum is 86.

The spelling of 1798868688971 in words is "one trillion, seven hundred ninety-eight billion, eight hundred sixty-eight million, six hundred eighty-eight thousand, nine hundred seventy-one".