18641103349 has 8 divisors (see below), whose sum is σ = 20374787520. Its totient is φ = 16913925600.

The previous prime is 18641103317. The next prime is 18641103353. The reversal of 18641103349 is 94330114681.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18641103349 - 2⁵ = 18641103317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18641103359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1620609 + ... + 1632070.

It is an arithmetic number, because the mean of its divisors is an integer number (2546848440).

Almost surely, 2^18641103349 is an apocalyptic number.

It is an amenable number.

18641103349 is a deficient number, since it is larger than the sum of its proper divisors (1733684171).

18641103349 is a wasteful number, since it uses less digits than its factorization.

18641103349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253211.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 18641103349 in words is "eighteen billion, six hundred forty-one million, one hundred three thousand, three hundred forty-nine".