13250468618 has 4 divisors (see below), whose sum is σ = 19875702930. Its totient is φ = 6625234308.

The previous prime is 13250468611. The next prime is 13250468633. The reversal of 13250468618 is 81686405231.

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

It can be written as a sum of positive squares in only one way, i.e., 9001645129 + 4248823489 = 94877^2 + 65183^2 .

It is not an unprimeable number, because it can be changed into a prime (13250468611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3312617153 + ... + 3312617156.

Almost surely, 2^13250468618 is an apocalyptic number.

13250468618 is a deficient number, since it is larger than the sum of its proper divisors (6625234312).

13250468618 is an equidigital number, since it uses as much as digits as its factorization.

13250468618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6625234311.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 13250468618 in words is "thirteen billion, two hundred fifty million, four hundred sixty-eight thousand, six hundred eighteen".