180287672725361 has 4 divisors (see below), whose sum is σ = 180287760647412. Its totient is φ = 180287584803312.

The previous prime is 180287672725313. The next prime is 180287672725427. The reversal of 180287672725361 is 163527276782081.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 133739256155761 + 46548416569600 = 11564569^2 + 6822640^2 .

It is a cyclic number.

It is not a de Polignac number, because 180287672725361 - 2¹⁴ = 180287672708977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180287672725861) 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, 40809926 + ... + 45011391.

It is an arithmetic number, because the mean of its divisors is an integer number (45071940161853).

Almost surely, 2^{180287672725361} is an apocalyptic number.

It is an amenable number.

180287672725361 is a deficient number, since it is larger than the sum of its proper divisors (87922051).

180287672725361 is an equidigital number, since it uses as much as digits as its factorization.

180287672725361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87922050.

The product of its (nonzero) digits is 94832640, while the sum is 65.

The spelling of 180287672725361 in words is "one hundred eighty trillion, two hundred eighty-seven billion, six hundred seventy-two million, seven hundred twenty-five thousand, three hundred sixty-one".