18932473317 has 16 divisors (see below), whose sum is σ = 26822664000. Its totient is φ = 11837213952.

The previous prime is 18932473229. The next prime is 18932473333. The reversal of 18932473317 is 71337423981.

It is not a de Polignac number, because 18932473317 - 2¹² = 18932469221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18932473367) 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 15 ways as a sum of consecutive naturals, for example, 641442 + ... + 670307.

It is an arithmetic number, because the mean of its divisors is an integer number (1676416500).

Almost surely, 2^18932473317 is an apocalyptic number.

18932473317 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

18932473317 is a deficient number, since it is larger than the sum of its proper divisors (7890190683).

18932473317 is a wasteful number, since it uses less digits than its factorization.

18932473317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312052.

The product of its digits is 762048, while the sum is 48.

The spelling of 18932473317 in words is "eighteen billion, nine hundred thirty-two million, four hundred seventy-three thousand, three hundred seventeen".