16956739817 has 4 divisors (see below), whose sum is σ = 17503731456. Its totient is φ = 16409748180.

The previous prime is 16956739799. The next prime is 16956739819. The reversal of 16956739817 is 71893765961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16956739817 - 2¹⁰ = 16956738793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16956739817.

It is not an unprimeable number, because it can be changed into a prime (16956739819) 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, 273495773 + ... + 273495834.

It is an arithmetic number, because the mean of its divisors is an integer number (4375932864).

Almost surely, 2^16956739817 is an apocalyptic number.

It is an amenable number.

16956739817 is a deficient number, since it is larger than the sum of its proper divisors (546991639).

16956739817 is an equidigital number, since it uses as much as digits as its factorization.

16956739817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546991638.

The product of its digits is 17146080, while the sum is 62.

The spelling of 16956739817 in words is "sixteen billion, nine hundred fifty-six million, seven hundred thirty-nine thousand, eight hundred seventeen".