18052587352989 has 192 divisors, whose sum is σ = 34034240862720. Its totient is φ = 9389911910400.

The previous prime is 18052587352957. The next prime is 18052587352997. The reversal of 18052587352989 is 98925378525081.

It is a happy number.

18052587352989 is a `hidden beast` number, since 1 + 8 + 0 + 5 + 2 + 587 + 35 + 2 + 9 + 8 + 9 = 666.

It is not a de Polignac number, because 18052587352989 - 2⁵ = 18052587352957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18052587352909) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 138906939 + ... + 139036839.

It is an arithmetic number, because the mean of its divisors is an integer number (177261671160).

Almost surely, 2^{18052587352989} is an apocalyptic number.

It is an amenable number.

18052587352989 is a deficient number, since it is larger than the sum of its proper divisors (15981653509731).

18052587352989 is a wasteful number, since it uses less digits than its factorization.

18052587352989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130145 (or 130132 counting only the distinct ones).

The product of its (nonzero) digits is 435456000, while the sum is 72.

The spelling of 18052587352989 in words is "eighteen trillion, fifty-two billion, five hundred eighty-seven million, three hundred fifty-two thousand, nine hundred eighty-nine".