18341276544 has 48 divisors (see below), whose sum is σ = 52778937120. Its totient is φ = 6113758464.

The previous prime is 18341276539. The next prime is 18341276579. The reversal of 18341276544 is 44567214381.

18341276544 is a `hidden beast` number, since 1 + 8 + 34 + 1 + 2 + 76 + 544 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 18341276544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7959472 + ... + 7961775.

It is an arithmetic number, because the mean of its divisors is an integer number (1099561190).

Almost surely, 2^18341276544 is an apocalyptic number.

It is an amenable number.

18341276544 is an abundant number, since it is smaller than the sum of its proper divisors (34437660576).

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

18341276544 is a wasteful number, since it uses less digits than its factorization.

18341276544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15921267 (or 15921252 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The spelling of 18341276544 in words is "eighteen billion, three hundred forty-one million, two hundred seventy-six thousand, five hundred forty-four".