180874453429 has 4 divisors (see below), whose sum is σ = 180986590476. Its totient is φ = 180762316384.

The previous prime is 180874453421. The next prime is 180874453457. The reversal of 180874453429 is 924354478081.

180874453429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 924354478081 = 47059 ⋅19642459.

It can be written as a sum of positive squares in 2 ways, for example, as 77947056100 + 102927397329 = 279190^2 + 320823^2 .

It is a cyclic number.

It is not a de Polignac number, because 180874453429 - 2³ = 180874453421 is a prime.

It is a super-3 number, since 3×180874453429³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 180874453429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180874453421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56066104 + ... + 56069329.

It is an arithmetic number, because the mean of its divisors is an integer number (45246647619).

Almost surely, 2^180874453429 is an apocalyptic number.

It is an amenable number.

180874453429 is a deficient number, since it is larger than the sum of its proper divisors (112137047).

180874453429 is a wasteful number, since it uses less digits than its factorization.

180874453429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112137046.

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 180874453429 in words is "one hundred eighty billion, eight hundred seventy-four million, four hundred fifty-three thousand, four hundred twenty-nine".