180427869892 has 12 divisors (see below), whose sum is σ = 324282523180. Its totient is φ = 87775720416.

The previous prime is 180427869889. The next prime is 180427869899. The reversal of 180427869892 is 298968724081.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 115888499776 + 64539370116 = 340424^2 + 254046^2 .

It is not an unprimeable number, because it can be changed into a prime (180427869899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609553467 + ... + 609553762.

Almost surely, 2^180427869892 is an apocalyptic number.

It is an amenable number.

180427869892 is a deficient number, since it is larger than the sum of its proper divisors (143854653288).

180427869892 is a wasteful number, since it uses less digits than its factorization.

180427869892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219107270 (or 1219107268 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 64.

The spelling of 180427869892 in words is "one hundred eighty billion, four hundred twenty-seven million, eight hundred sixty-nine thousand, eight hundred ninety-two".