16972833931 has 4 divisors (see below), whose sum is σ = 17866141000. Its totient is φ = 16079526864.

The previous prime is 16972833859. The next prime is 16972833947. The reversal of 16972833931 is 13933827961.

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 16972833931 - 2⁷ = 16972833803 is a prime.

It is a super-2 number, since 2×16972833931² (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 (16972533931) 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 3 ways as a sum of consecutive naturals, for example, 446653506 + ... + 446653543.

It is an arithmetic number, because the mean of its divisors is an integer number (4466535250).

Almost surely, 2^16972833931 is an apocalyptic number.

16972833931 is a deficient number, since it is larger than the sum of its proper divisors (893307069).

16972833931 is an equidigital number, since it uses as much as digits as its factorization.

16972833931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893307068.

The product of its digits is 1469664, while the sum is 52.

The spelling of 16972833931 in words is "sixteen billion, nine hundred seventy-two million, eight hundred thirty-three thousand, nine hundred thirty-one".