18882449015236 has 81 divisors (see below), whose sum is σ = 34514420072013. Its totient is φ = 9038767151520.

The previous prime is 18882449015233. The next prime is 18882449015279. The reversal of 18882449015236 is 63251094428881.

The square root of 18882449015236 is 4345394.

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., 13160976373636 + 5721472641600 = 3627806^2 + 2391960^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18882449015233) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 29366172331 + ... + 29366172973.

Almost surely, 2^{18882449015236} is an apocalyptic number.

18882449015236 is the 4345394-th square number.

It is an amenable number.

18882449015236 is a deficient number, since it is larger than the sum of its proper divisors (15631971056777).

18882449015236 is an frugal number, since it uses more digits than its factorization.

18882449015236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570 (or 785 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 61.

The spelling of 18882449015236 in words is "eighteen trillion, eight hundred eighty-two billion, four hundred forty-nine million, fifteen thousand, two hundred thirty-six".