2180102451289 has 15 divisors (see below), whose sum is σ = 2543385932223. Its totient is φ = 1868597230248.

The previous prime is 2180102451287. The next prime is 2180102451341. The reversal of 2180102451289 is 9821542010812.

The square root of 2180102451289 is 1476517.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 668412529225 + 1511689922064 = 817565^2 + 1229508^2 .

It is not a de Polignac number, because 2180102451289 - 2¹ = 2180102451287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2180102451287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 72334267 + ... + 72364399.

Almost surely, 2^{2180102451289} is an apocalyptic number.

2180102451289 is the 1476517-th square number.

2180102451289 is the 738259-th centered octagonal number.

It is an amenable number.

2180102451289 is a deficient number, since it is larger than the sum of its proper divisors (363283480934).

2180102451289 is an frugal number, since it uses more digits than its factorization.

2180102451289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60294 (or 30140 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 43.

The spelling of 2180102451289 in words is "two trillion, one hundred eighty billion, one hundred two million, four hundred fifty-one thousand, two hundred eighty-nine".