16923832891 has 8 divisors (see below), whose sum is σ = 19364099040. Its totient is φ = 14489210688.

The previous prime is 16923832867. The next prime is 16923832901. The reversal of 16923832891 is 19823832961.

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

It is a cyclic number.

It is not a de Polignac number, because 16923832891 - 2¹⁵ = 16923800123 is a prime.

It is a super-2 number, since 2×16923832891² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16923832831) 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, 1404556 + ... + 1416553.

It is an arithmetic number, because the mean of its divisors is an integer number (2420512380).

Almost surely, 2^16923832891 is an apocalyptic number.

16923832891 is a deficient number, since it is larger than the sum of its proper divisors (2440266149).

16923832891 is an equidigital number, since it uses as much as digits as its factorization.

16923832891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2821973.

The product of its digits is 1119744, while the sum is 52.

The spelling of 16923832891 in words is "sixteen billion, nine hundred twenty-three million, eight hundred thirty-two thousand, eight hundred ninety-one".