18061138282446 has 32 divisors (see below), whose sum is σ = 45869557543680. Its totient is φ = 5160325223448.

The previous prime is 18061138282441. The next prime is 18061138282483. The reversal of 18061138282446 is 64428283116081.

18061138282446 is a `hidden beast` number, since 1 + 8 + 0 + 6 + 11 + 382 + 8 + 244 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 18061138282392 and 18061138282401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18061138282441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23890394176 + ... + 23890394931.

It is an arithmetic number, because the mean of its divisors is an integer number (1433423673240).

Almost surely, 2^{18061138282446} is an apocalyptic number.

18061138282446 is an abundant number, since it is smaller than the sum of its proper divisors (27808419261234).

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

18061138282446 is a wasteful number, since it uses less digits than its factorization.

18061138282446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47780789125 (or 47780789119 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 54.

The spelling of 18061138282446 in words is "eighteen trillion, sixty-one billion, one hundred thirty-eight million, two hundred eighty-two thousand, four hundred forty-six".