180948844836 has 72 divisors (see below), whose sum is σ = 475578614784. Its totient is φ = 60158674080.

The previous prime is 180948844829. The next prime is 180948844837. The reversal of 180948844836 is 638448849081.

180948844836 is a `hidden beast` number, since 1 + 80 + 9 + 4 + 88 + 448 + 36 = 666.

It is not an unprimeable number, because it can be changed into a prime (180948844837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129246 + ... + 615306.

Almost surely, 2^180948844836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180948844836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237789307392).

180948844836 is an abundant number, since it is smaller than the sum of its proper divisors (294629769948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

180948844836 is a wasteful number, since it uses less digits than its factorization.

180948844836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486463 (or 486449 counting only the distinct ones).

The product of its (nonzero) digits is 42467328, while the sum is 63.

The spelling of 180948844836 in words is "one hundred eighty billion, nine hundred forty-eight million, eight hundred forty-four thousand, eight hundred thirty-six".