18336869396208 has 120 divisors (see below), whose sum is σ = 56295773089920. Its totient is φ = 5525584394880.

The previous prime is 18336869396203. The next prime is 18336869396213. The reversal of 18336869396208 is 80269396863381.

18336869396208 is a `hidden beast` number, since 1 + 8 + 336 + 86 + 9 + 3 + 9 + 6 + 208 = 666.

It is an interprime number because it is at equal distance from previous prime (18336869396203) and next prime (18336869396213).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18336869396203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32052516 + ... + 32619587.

It is an arithmetic number, because the mean of its divisors is an integer number (469131442416).

Almost surely, 2^{18336869396208} is an apocalyptic number.

18336869396208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18336869396208 is an abundant number, since it is smaller than the sum of its proper divisors (37958903693712).

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

18336869396208 is a wasteful number, since it uses less digits than its factorization.

18336869396208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64672307 (or 64672298 counting only the distinct ones).

The product of its (nonzero) digits is 483729408, while the sum is 72.

The spelling of 18336869396208 in words is "eighteen trillion, three hundred thirty-six billion, eight hundred sixty-nine million, three hundred ninety-six thousand, two hundred eight".