186853358449 has 16 divisors (see below), whose sum is σ = 196564008960. Its totient is φ = 177275664720.

The previous prime is 186853358423. The next prime is 186853358473. The reversal of 186853358449 is 944853358681.

It is a cyclic number.

It is not a de Polignac number, because 186853358449 - 2¹⁷ = 186853227377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (186853355449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17342434 + ... + 17353204.

It is an arithmetic number, because the mean of its divisors is an integer number (12285250560).

Almost surely, 2^186853358449 is an apocalyptic number.

It is an amenable number.

186853358449 is a deficient number, since it is larger than the sum of its proper divisors (9710650511).

186853358449 is a wasteful number, since it uses less digits than its factorization.

186853358449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16860.

The product of its digits is 99532800, while the sum is 64.

The spelling of 186853358449 in words is "one hundred eighty-six billion, eight hundred fifty-three million, three hundred fifty-eight thousand, four hundred forty-nine".