18849886635 has 16 divisors (see below), whose sum is σ = 30654243360. Its totient is φ = 9888464640.

The previous prime is 18849886621. The next prime is 18849886669. The reversal of 18849886635 is 53668894881.

It is not a de Polignac number, because 18849886635 - 2⁷ = 18849886507 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10299570 + ... + 10301399.

It is an arithmetic number, because the mean of its divisors is an integer number (1915890210).

Almost surely, 2^18849886635 is an apocalyptic number.

18849886635 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18849886635 is a deficient number, since it is larger than the sum of its proper divisors (11804356725).

18849886635 is a wasteful number, since it uses less digits than its factorization.

18849886635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20601038.

The product of its digits is 79626240, while the sum is 66.

The spelling of 18849886635 in words is "eighteen billion, eight hundred forty-nine million, eight hundred eighty-six thousand, six hundred thirty-five".