18315196684836 has 12 divisors (see below), whose sum is σ = 42735458931312. Its totient is φ = 6105065561608.

The previous prime is 18315196684787. The next prime is 18315196684847. The reversal of 18315196684836 is 63848669151381.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 763133195190 + ... + 763133195213.

It is an arithmetic number, because the mean of its divisors is an integer number (3561288244276).

Almost surely, 2^{18315196684836} is an apocalyptic number.

It is an amenable number.

18315196684836 is an abundant number, since it is smaller than the sum of its proper divisors (24420262246476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18315196684836 is a wasteful number, since it uses less digits than its factorization.

18315196684836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526266390410 (or 1526266390408 counting only the distinct ones).

The product of its digits is 179159040, while the sum is 69.

The spelling of 18315196684836 in words is "eighteen trillion, three hundred fifteen billion, one hundred ninety-six million, six hundred eighty-four thousand, eight hundred thirty-six".