16893919973 has 16 divisors (see below), whose sum is σ = 19783209600. Its totient is φ = 14420347200.

The previous prime is 16893919969. The next prime is 16893919981. The reversal of 16893919973 is 37991939861.

It is not a de Polignac number, because 16893919973 - 2² = 16893919969 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16893919963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19523 + ... + 184848.

It is an arithmetic number, because the mean of its divisors is an integer number (1236450600).

Almost surely, 2^16893919973 is an apocalyptic number.

It is an amenable number.

16893919973 is a deficient number, since it is larger than the sum of its proper divisors (2889289627).

16893919973 is an equidigital number, since it uses as much as digits as its factorization.

16893919973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204633 (or 204619 counting only the distinct ones).

The product of its digits is 19840464, while the sum is 65.

The spelling of 16893919973 in words is "sixteen billion, eight hundred ninety-three million, nine hundred nineteen thousand, nine hundred seventy-three".