18829319297564 has 6 divisors (see below), whose sum is σ = 32951308770744. Its totient is φ = 9414659648780.

The previous prime is 18829319297563. The next prime is 18829319297617. The reversal of 18829319297564 is 46579291392881.

It is a junction number, because it is equal to n+sod(n) for n = 18829319297491 and 18829319297500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18829319297561) 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 as a sum of consecutive naturals, namely, 2353664912192 + ... + 2353664912199.

It is an arithmetic number, because the mean of its divisors is an integer number (5491884795124).

Almost surely, 2^{18829319297564} is an apocalyptic number.

It is an amenable number.

18829319297564 is a deficient number, since it is larger than the sum of its proper divisors (14121989473180).

18829319297564 is a wasteful number, since it uses less digits than its factorization.

18829319297564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4707329824395 (or 4707329824393 counting only the distinct ones).

The product of its digits is 470292480, while the sum is 74.

The spelling of 18829319297564 in words is "eighteen trillion, eight hundred twenty-nine billion, three hundred nineteen million, two hundred ninety-seven thousand, five hundred sixty-four".