16974273081 has 4 divisors (see below), whose sum is σ = 22632364112. Its totient is φ = 11316182052.

The previous prime is 16974273077. The next prime is 16974273083. The reversal of 16974273081 is 18037247961.

It is a happy number.

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 not a de Polignac number, because 16974273081 - 2² = 16974273077 is a prime.

It is a super-2 number, since 2×16974273081² (a number of 21 digits) contains 22 as substring.

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 16974273081.

It is not an unprimeable number, because it can be changed into a prime (16974273083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2829045511 + ... + 2829045516.

It is an arithmetic number, because the mean of its divisors is an integer number (5658091028).

Almost surely, 2^16974273081 is an apocalyptic number.

It is an amenable number.

16974273081 is a deficient number, since it is larger than the sum of its proper divisors (5658091031).

16974273081 is an equidigital number, since it uses as much as digits as its factorization.

16974273081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5658091030.

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 16974273081 in words is "sixteen billion, nine hundred seventy-four million, two hundred seventy-three thousand, eighty-one".