180342060889 has 3 divisors (see below), whose sum is σ = 180342485557. Its totient is φ = 180341636222.

The previous prime is 180342060883. The next prime is 180342060893. The reversal of 180342060889 is 988060243081.

The square root of 180342060889 is 424667.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 180342060889 - 2¹⁹ = 180341536601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180342060883) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 212334 + ... + 637000.

Almost surely, 2^180342060889 is an apocalyptic number.

180342060889 is the 424667-th square number.

180342060889 is the 212334-th centered octagonal number.

It is an amenable number.

180342060889 is a deficient number, since it is larger than the sum of its proper divisors (424668).

180342060889 is an frugal number, since it uses more digits than its factorization.

180342060889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849334 (or 424667 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 49.

Multiplying 180342060889 by its sum of digits (49), we get a square (8836760983561 = 2972669²).

The spelling of 180342060889 in words is "one hundred eighty billion, three hundred forty-two million, sixty thousand, eight hundred eighty-nine".