18336838659072 has 88 divisors (see below), whose sum is σ = 48933322930800. Its totient is φ = 6104905629696.

The previous prime is 18336838659053. The next prime is 18336838659101. The reversal of 18336838659072 is 27095683863381.

It is a junction number, because it is equal to n+sod(n) for n = 18336838658988 and 18336838659006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1053447 + ... + 6146822.

It is an arithmetic number, because the mean of its divisors is an integer number (556060487850).

Almost surely, 2^{18336838659072} is an apocalyptic number.

18336838659072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18336838659072 is an abundant number, since it is smaller than the sum of its proper divisors (30596484271728).

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

18336838659072 is an equidigital number, since it uses as much as digits as its factorization.

18336838659072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7201121 (or 7201103 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 69.

The spelling of 18336838659072 in words is "eighteen trillion, three hundred thirty-six billion, eight hundred thirty-eight million, six hundred fifty-nine thousand, seventy-two".