17793946947 has 16 divisors (see below), whose sum is σ = 27116556800. Its totient is φ = 10167230592.

The previous prime is 17793946931. The next prime is 17793946967. The reversal of 17793946947 is 74964939771.

It is not a de Polignac number, because 17793946947 - 2⁴ = 17793946931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17793946927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415179 + ... + 456027.

It is an arithmetic number, because the mean of its divisors is an integer number (1694784800).

Almost surely, 2^17793946947 is an apocalyptic number.

17793946947 is a deficient number, since it is larger than the sum of its proper divisors (9322609853).

17793946947 is a wasteful number, since it uses less digits than its factorization.

17793946947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61602.

The product of its digits is 72013536, while the sum is 66.

The spelling of 17793946947 in words is "seventeen billion, seven hundred ninety-three million, nine hundred forty-six thousand, nine hundred forty-seven".