18701717053352 has 16 divisors (see below), whose sum is σ = 35106828185940. Its totient is φ = 9339896203776.

The previous prime is 18701717053351. The next prime is 18701717053531. The reversal of 18701717053352 is 25335071710781.

It can be written as a sum of positive squares in 2 ways, for example, as 12614473442596 + 6087243610756 = 3551686^2 + 2467234^2 .

It is a super-2 number, since 2×18701717053352² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18701717053352.

It is not an unprimeable number, because it can be changed into a prime (18701717053351) 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, 1370283113 + ... + 1370296760.

Almost surely, 2^{18701717053352} is an apocalyptic number.

It is an amenable number.

18701717053352 is a deficient number, since it is larger than the sum of its proper divisors (16405111132588).

18701717053352 is a wasteful number, since it uses less digits than its factorization.

18701717053352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740580732 (or 2740580728 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 50.

The spelling of 18701717053352 in words is "eighteen trillion, seven hundred one billion, seven hundred seventeen million, fifty-three thousand, three hundred fifty-two".