13028185318 has 4 divisors (see below), whose sum is σ = 19542277980. Its totient is φ = 6514092658.

The previous prime is 13028185267. The next prime is 13028185319. The reversal of 13028185318 is 81358182031.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×13028185318² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13028185319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3257046328 + ... + 3257046331.

It is an arithmetic number, because the mean of its divisors is an integer number (4885569495).

Almost surely, 2^13028185318 is an apocalyptic number.

13028185318 is a deficient number, since it is larger than the sum of its proper divisors (6514092662).

13028185318 is an equidigital number, since it uses as much as digits as its factorization.

13028185318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6514092661.

The product of its (nonzero) digits is 46080, while the sum is 40.

The spelling of 13028185318 in words is "thirteen billion, twenty-eight million, one hundred eighty-five thousand, three hundred eighteen".