180142828289 has 2 divisors, whose sum is σ = 180142828290. Its totient is φ = 180142828288.

The previous prime is 180142828267. The next prime is 180142828339. The reversal of 180142828289 is 982828241081.

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., 168658062400 + 11484765889 = 410680^2 + 107167^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180142828289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 180142828289.

It is not a weakly prime, because it can be changed into another prime (180142821289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90071414144 + 90071414145.

It is an arithmetic number, because the mean of its divisors is an integer number (90071414145).

Almost surely, 2^180142828289 is an apocalyptic number.

It is an amenable number.

180142828289 is a deficient number, since it is larger than the sum of its proper divisors (1).

180142828289 is an equidigital number, since it uses as much as digits as its factorization.

180142828289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1179648, while the sum is 53.

The spelling of 180142828289 in words is "one hundred eighty billion, one hundred forty-two million, eight hundred twenty-eight thousand, two hundred eighty-nine".