17983392056 has 32 divisors (see below), whose sum is σ = 38646300000. Its totient is φ = 7685076096.

The previous prime is 17983392041. The next prime is 17983392059. The reversal of 17983392056 is 65029338971.

It is a junction number, because it is equal to n+sod(n) for n = 17983391989 and 17983392007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17983392059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440531 + ... + 479618.

It is an arithmetic number, because the mean of its divisors is an integer number (1207696875).

Almost surely, 2^17983392056 is an apocalyptic number.

It is an amenable number.

17983392056 is an abundant number, since it is smaller than the sum of its proper divisors (20662907944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17983392056 is a wasteful number, since it uses less digits than its factorization.

17983392056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920511 (or 920507 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 53.

The spelling of 17983392056 in words is "seventeen billion, nine hundred eighty-three million, three hundred ninety-two thousand, fifty-six".