1801811654484 has 24 divisors (see below), whose sum is σ = 4451534676288. Its totient is φ = 565274244480.

The previous prime is 1801811654449. The next prime is 1801811654497. The reversal of 1801811654484 is 4844561181081.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4416204832 + ... + 4416205239.

It is an arithmetic number, because the mean of its divisors is an integer number (185480611512).

Almost surely, 2^{1801811654484} is an apocalyptic number.

It is an amenable number.

1801811654484 is an abundant number, since it is smaller than the sum of its proper divisors (2649723021804).

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

1801811654484 is a wasteful number, since it uses less digits than its factorization.

1801811654484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8832410095 (or 8832410093 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 51.

The spelling of 1801811654484 in words is "one trillion, eight hundred one billion, eight hundred eleven million, six hundred fifty-four thousand, four hundred eighty-four".