1801362145820 has 24 divisors (see below), whose sum is σ = 3790441410000. Its totient is φ = 719100876672.

The previous prime is 1801362145799. The next prime is 1801362145823. The reversal of 1801362145820 is 285412631081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1801362145823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90238625 + ... + 90258584.

It is an arithmetic number, because the mean of its divisors is an integer number (157935058750).

Almost surely, 2^{1801362145820} is an apocalyptic number.

1801362145820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1801362145820 is an abundant number, since it is smaller than the sum of its proper divisors (1989079264180).

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

1801362145820 is a wasteful number, since it uses less digits than its factorization.

1801362145820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180497717 (or 180497715 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 1801362145820 in words is "one trillion, eight hundred one billion, three hundred sixty-two million, one hundred forty-five thousand, eight hundred twenty".