13749895618 has 8 divisors (see below), whose sum is σ = 20634136380. Its totient is φ = 6871850160.

The previous prime is 13749895603. The next prime is 13749895639. The reversal of 13749895618 is 81659894731.

It can be written as a sum of positive squares in 2 ways, for example, as 13670987929 + 78907689 = 116923^2 + 8883^2 .

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, 1543273 + ... + 1552156.

Almost surely, 2^13749895618 is an apocalyptic number.

13749895618 is a deficient number, since it is larger than the sum of its proper divisors (6884240762).

13749895618 is a wasteful number, since it uses less digits than its factorization.

13749895618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097652.

The product of its digits is 13063680, while the sum is 61.

The spelling of 13749895618 in words is "thirteen billion, seven hundred forty-nine million, eight hundred ninety-five thousand, six hundred eighteen".