1808504738141 has 2 divisors, whose sum is σ = 1808504738142. Its totient is φ = 1808504738140.

The previous prime is 1808504738113. The next prime is 1808504738153. The reversal of 1808504738141 is 1418374058081.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1704930832900 + 103573905241 = 1305730^2 + 321829^2 .

It is a cyclic number.

It is not a de Polignac number, because 1808504738141 - 2²⁶ = 1808437629277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1808504738141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1808504738641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 904252369070 + 904252369071.

It is an arithmetic number, because the mean of its divisors is an integer number (904252369071).

Almost surely, 2^{1808504738141} is an apocalyptic number.

It is an amenable number.

1808504738141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1808504738141 is an equidigital number, since it uses as much as digits as its factorization.

1808504738141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 860160, while the sum is 50.

The spelling of 1808504738141 in words is "one trillion, eight hundred eight billion, five hundred four million, seven hundred thirty-eight thousand, one hundred forty-one".