1801836587141 has 2 divisors, whose sum is σ = 1801836587142. Its totient is φ = 1801836587140.

The previous prime is 1801836587137. The next prime is 1801836587179. The reversal of 1801836587141 is 1417856381081.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1798471427041 + 3365160100 = 1341071^2 + 58010^2 .

It is a cyclic number.

It is not a de Polignac number, because 1801836587141 - 2² = 1801836587137 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1801836587101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 900918293570 + 900918293571.

It is an arithmetic number, because the mean of its divisors is an integer number (900918293571).

Almost surely, 2^{1801836587141} is an apocalyptic number.

It is an amenable number.

1801836587141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1801836587141 is an equidigital number, since it uses as much as digits as its factorization.

1801836587141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1290240, while the sum is 53.

The spelling of 1801836587141 in words is "one trillion, eight hundred one billion, eight hundred thirty-six million, five hundred eighty-seven thousand, one hundred forty-one".