16864731789 has 8 divisors (see below), whose sum is σ = 22523851200. Its totient is φ = 11224383456.

The previous prime is 16864731773. The next prime is 16864731791. The reversal of 16864731789 is 98713746861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16864731789 - 2⁴ = 16864731773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16864731089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4690672 + ... + 4694265.

It is an arithmetic number, because the mean of its divisors is an integer number (2815481400).

Almost surely, 2^16864731789 is an apocalyptic number.

It is an amenable number.

16864731789 is a deficient number, since it is larger than the sum of its proper divisors (5659119411).

16864731789 is an equidigital number, since it uses as much as digits as its factorization.

16864731789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9385539.

The product of its digits is 12192768, while the sum is 60.

The spelling of 16864731789 in words is "sixteen billion, eight hundred sixty-four million, seven hundred thirty-one thousand, seven hundred eighty-nine".