18785945247502 has 8 divisors (see below), whose sum is σ = 28189101803616. Its totient is φ = 9389577979632.

The previous prime is 18785945247497. The next prime is 18785945247539. The reversal of 18785945247502 is 20574254958781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1697315143 + ... + 1697326210.

It is an arithmetic number, because the mean of its divisors is an integer number (3523637725452).

Almost surely, 2^{18785945247502} is an apocalyptic number.

18785945247502 is a deficient number, since it is larger than the sum of its proper divisors (9403156556114).

18785945247502 is a wasteful number, since it uses less digits than its factorization.

18785945247502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3394644122.

The product of its (nonzero) digits is 225792000, while the sum is 67.

The spelling of 18785945247502 in words is "eighteen trillion, seven hundred eighty-five billion, nine hundred forty-five million, two hundred forty-seven thousand, five hundred two".