18006408006790 has 32 divisors (see below), whose sum is σ = 37041912417024. Its totient is φ = 6173599135200.

The previous prime is 18006408006749. The next prime is 18006408006809. The reversal of 18006408006790 is 9760080460081.

It is a super-2 number, since 2×18006408006790² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 23069697 + ... + 23837443.

It is an arithmetic number, because the mean of its divisors is an integer number (1157559763032).

Almost surely, 2^{18006408006790} is an apocalyptic number.

18006408006790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18006408006790 is an abundant number, since it is smaller than the sum of its proper divisors (19035504410234).

18006408006790 is a wasteful number, since it uses less digits than its factorization.

18006408006790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102812.

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 18006408006790 in words is "eighteen trillion, six billion, four hundred eight million, six thousand, seven hundred ninety".