180932333451921 has 12 divisors (see below), whose sum is σ = 261411699377140. Its totient is φ = 120591557710560.

The previous prime is 180932333451901. The next prime is 180932333451923. The reversal of 180932333451921 is 129154333239081.

180932333451921 is a `hidden beast` number, since 1 + 8 + 0 + 93 + 2 + 3 + 3 + 34 + 519 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9383531195025 + 171548802256896 = 3063255^2 + 13097664^2 .

It is not a de Polignac number, because 180932333451921 - 2²¹ = 180932331354769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (180932333451923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2499788806 + ... + 2499861183.

Almost surely, 2^{180932333451921} is an apocalyptic number.

It is an amenable number.

180932333451921 is a deficient number, since it is larger than the sum of its proper divisors (80479365925219).

180932333451921 is a wasteful number, since it uses less digits than its factorization.

180932333451921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999654016 (or 4999654013 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The spelling of 180932333451921 in words is "one hundred eighty trillion, nine hundred thirty-two billion, three hundred thirty-three million, four hundred fifty-one thousand, nine hundred twenty-one".