1801482764544 has 144 divisors (see below), whose sum is σ = 5330550379840. Its totient is φ = 600128040960.

The previous prime is 1801482764539. The next prime is 1801482764659. The reversal of 1801482764544 is 4454672841081.

1801482764544 is a `hidden beast` number, since 1 + 8 + 0 + 14 + 8 + 27 + 64 + 544 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11374539 + ... + 11531829.

Almost surely, 2^{1801482764544} 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 1801482764544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2665275189920).

1801482764544 is an abundant number, since it is smaller than the sum of its proper divisors (3529067615296).

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

1801482764544 is a wasteful number, since it uses less digits than its factorization.

1801482764544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158973 (or 158953 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 54.

The spelling of 1801482764544 in words is "one trillion, eight hundred one billion, four hundred eighty-two million, seven hundred sixty-four thousand, five hundred forty-four".