1801418341632 has 864 divisors, whose sum is σ = 6087795049728. Its totient is φ = 462915108864.

The previous prime is 1801418341609. The next prime is 1801418341669. The reversal of 1801418341632 is 2361438141081.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10412822698 + ... + 10412822870.

Almost surely, 2^{1801418341632} is an apocalyptic number.

1801418341632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1801418341632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3043897524864).

1801418341632 is an abundant number, since it is smaller than the sum of its proper divisors (4286376708096).

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

1801418341632 is a wasteful number, since it uses less digits than its factorization.

1801418341632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 1801418341632 in words is "one trillion, eight hundred one billion, four hundred eighteen million, three hundred forty-one thousand, six hundred thirty-two".