17982039253 has 4 divisors (see below), whose sum is σ = 17982376588. Its totient is φ = 17981701920.

The previous prime is 17982039241. The next prime is 17982039287. The reversal of 17982039253 is 35293028971.

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 7314867729 + 10667171524 = 85527^2 + 103282^2 .

It is a cyclic number.

It is not a de Polignac number, because 17982039253 - 2⁹ = 17982038741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17982039197 and 17982039206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17982031253) 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, 69126 + ... + 201847.

It is an arithmetic number, because the mean of its divisors is an integer number (4495594147).

Almost surely, 2^17982039253 is an apocalyptic number.

It is an amenable number.

17982039253 is a deficient number, since it is larger than the sum of its proper divisors (337335).

17982039253 is an equidigital number, since it uses as much as digits as its factorization.

17982039253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337334.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 17982039253 in words is "seventeen billion, nine hundred eighty-two million, thirty-nine thousand, two hundred fifty-three".