13143817730 has 8 divisors (see below), whose sum is σ = 23658871932. Its totient is φ = 5257527088.

The previous prime is 13143817721. The next prime is 13143817747. The reversal of 13143817730 is 3771834131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12841649041 + 302168689 = 113321^2 + 17383^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657190877 + ... + 657190896.

Almost surely, 2^13143817730 is an apocalyptic number.

13143817730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13143817730 is a deficient number, since it is larger than the sum of its proper divisors (10515054202).

13143817730 is a wasteful number, since it uses less digits than its factorization.

13143817730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314381780.

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 13143817730 in words is "thirteen billion, one hundred forty-three million, eight hundred seventeen thousand, seven hundred thirty".