18730947672784 has 10 divisors (see below), whose sum is σ = 36291211116050. Its totient is φ = 9365473836384.

The previous prime is 18730947672757. The next prime is 18730947672791. The reversal of 18730947672784 is 48727674903781.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16916538672784 + 1814409000000 = 4112972^2 + 1347000^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585342114759 + ... + 585342114790.

It is an arithmetic number, because the mean of its divisors is an integer number (3629121111605).

Almost surely, 2^{18730947672784} is an apocalyptic number.

It is an amenable number.

18730947672784 is a deficient number, since it is larger than the sum of its proper divisors (17560263443266).

18730947672784 is a wasteful number, since it uses less digits than its factorization.

18730947672784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170684229557 (or 1170684229551 counting only the distinct ones).

The product of its (nonzero) digits is 796594176, while the sum is 73.

The spelling of 18730947672784 in words is "eighteen trillion, seven hundred thirty billion, nine hundred forty-seven million, six hundred seventy-two thousand, seven hundred eighty-four".