18849228117211 has 8 divisors (see below), whose sum is σ = 18867792132800. Its totient is φ = 18830664915840.

The previous prime is 18849228117169. The next prime is 18849228117229. The reversal of 18849228117211 is 11271182294881.

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

It is a cyclic number.

It is not a de Polignac number, because 18849228117211 - 2²¹ = 18849226020059 is a prime.

It is a super-2 number, since 2×18849228117211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18849228117271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52924771 + ... + 53279731.

It is an arithmetic number, because the mean of its divisors is an integer number (2358474016600).

Almost surely, 2^{18849228117211} is an apocalyptic number.

18849228117211 is a deficient number, since it is larger than the sum of its proper divisors (18564015589).

18849228117211 is a wasteful number, since it uses less digits than its factorization.

18849228117211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407109.

The product of its digits is 1032192, while the sum is 55.

The spelling of 18849228117211 in words is "eighteen trillion, eight hundred forty-nine billion, two hundred twenty-eight million, one hundred seventeen thousand, two hundred eleven".