18476727819648 has 512 divisors, whose sum is σ = 57886126080000. Its totient is φ = 5219285041152.

The previous prime is 18476727819647. The next prime is 18476727819653. The reversal of 18476727819648 is 84691872767481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18476727819647) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5235681948 + ... + 5235685476.

It is an arithmetic number, because the mean of its divisors is an integer number (113058840000).

Almost surely, 2^{18476727819648} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18476727819648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28943063040000).

18476727819648 is an abundant number, since it is smaller than the sum of its proper divisors (39409398260352).

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

18476727819648 is a wasteful number, since it uses less digits than its factorization.

18476727819648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4007 (or 3981 counting only the distinct ones).

The product of its digits is 1820786688, while the sum is 78.

The spelling of 18476727819648 in words is "eighteen trillion, four hundred seventy-six billion, seven hundred twenty-seven million, eight hundred nineteen thousand, six hundred forty-eight".