13180371863 has 4 divisors (see below), whose sum is σ = 13339171608. Its totient is φ = 13021572120.

The previous prime is 13180371829. The next prime is 13180371943. The reversal of 13180371863 is 36817308131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36817308131 = 31 ⋅1187655101.

It is a cyclic number.

It is not a de Polignac number, because 13180371863 - 2¹⁴ = 13180355479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13180371863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13180377863) 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, 79399748 + ... + 79399913.

It is an arithmetic number, because the mean of its divisors is an integer number (3334792902).

Almost surely, 2^13180371863 is an apocalyptic number.

13180371863 is a deficient number, since it is larger than the sum of its proper divisors (158799745).

13180371863 is an equidigital number, since it uses as much as digits as its factorization.

13180371863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158799744.

The product of its (nonzero) digits is 72576, while the sum is 41.

Adding to 13180371863 its reverse (36817308131), we get a palindrome (49997679994).

The spelling of 13180371863 in words is "thirteen billion, one hundred eighty million, three hundred seventy-one thousand, eight hundred sixty-three".