180428408845 has 32 divisors (see below), whose sum is σ = 221964675840. Its totient is φ = 140761044480.

The previous prime is 180428408773. The next prime is 180428408851. The reversal of 180428408845 is 548804824081.

It is not a de Polignac number, because 180428408845 - 2¹⁹ = 180427884557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 180428408792 and 180428408801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13757151 + ... + 13770259.

It is an arithmetic number, because the mean of its divisors is an integer number (6936396120).

Almost surely, 2^180428408845 is an apocalyptic number.

It is an amenable number.

180428408845 is a deficient number, since it is larger than the sum of its proper divisors (41536266995).

180428408845 is a wasteful number, since it uses less digits than its factorization.

180428408845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13605.

The product of its (nonzero) digits is 2621440, while the sum is 52.

The spelling of 180428408845 in words is "one hundred eighty billion, four hundred twenty-eight million, four hundred eight thousand, eight hundred forty-five".