13235493818 has 16 divisors (see below), whose sum is σ = 19978781760. Its totient is φ = 6575926656.

The previous prime is 13235493811. The next prime is 13235493851. The reversal of 13235493818 is 81839453231.

It is not an unprimeable number, because it can be changed into a prime (13235493811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1533098 + ... + 1541706.

It is an arithmetic number, because the mean of its divisors is an integer number (1248673860).

Almost surely, 2^13235493818 is an apocalyptic number.

13235493818 is a deficient number, since it is larger than the sum of its proper divisors (6743287942).

13235493818 is a wasteful number, since it uses less digits than its factorization.

13235493818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13381.

The product of its digits is 622080, while the sum is 47.

The spelling of 13235493818 in words is "thirteen billion, two hundred thirty-five million, four hundred ninety-three thousand, eight hundred eighteen".