18000075000079 has 2 divisors, whose sum is σ = 18000075000080. Its totient is φ = 18000075000078.

The previous prime is 18000075000013. The next prime is 18000075000217. The reversal of 18000075000079 is 97000057000081.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18000075000079 is a prime.

It is a pancake number, because a pancake can be divided into 18000075000079 parts by 6000012 straight cuts.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18000075090079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9000037500039 + 9000037500040.

It is an arithmetic number, because the mean of its divisors is an integer number (9000037500040).

Almost surely, 2^{18000075000079} is an apocalyptic number.

18000075000079 is a deficient number, since it is larger than the sum of its proper divisors (1).

18000075000079 is an equidigital number, since it uses as much as digits as its factorization.

18000075000079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 37.

It can be divided in two parts, 1800007 and 5000079, that added together give a palindrome (6800086).

The spelling of 18000075000079 in words is "eighteen trillion, seventy-five million, seventy-nine", and thus it is an aban number and an uban number.