16939856593 has 8 divisors (see below), whose sum is σ = 18499493376. Its totient is φ = 15383494800.

The previous prime is 16939856537. The next prime is 16939856603. The reversal of 16939856593 is 39565893961.

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 16939856593 - 2²¹ = 16937759441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16939856093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 807921 + ... + 828622.

It is an arithmetic number, because the mean of its divisors is an integer number (2312436672).

Almost surely, 2^16939856593 is an apocalyptic number.

It is an amenable number.

16939856593 is a deficient number, since it is larger than the sum of its proper divisors (1559636783).

16939856593 is a wasteful number, since it uses less digits than its factorization.

16939856593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637495.

The product of its digits is 47239200, while the sum is 64.

The spelling of 16939856593 in words is "sixteen billion, nine hundred thirty-nine million, eight hundred fifty-six thousand, five hundred ninety-three".