18029125125252 has 36 divisors (see below), whose sum is σ = 45576752581360. Its totient is φ = 6009295530672.

The previous prime is 18029125125203. The next prime is 18029125125257. The reversal of 18029125125252 is 25252152192081.

18029125125252 is a `hidden beast` number, since 1 + 8 + 0 + 2 + 91 + 25 + 12 + 525 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 18029125125198 and 18029125125207.

It is not an unprimeable number, because it can be changed into a prime (18029125125257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16670302 + ... + 17718837.

Almost surely, 2^{18029125125252} is an apocalyptic number.

18029125125252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18029125125252 is an abundant number, since it is smaller than the sum of its proper divisors (27547627456108).

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

18029125125252 is a wasteful number, since it uses less digits than its factorization.

18029125125252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34403712 (or 34403707 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 45.

The spelling of 18029125125252 in words is "eighteen trillion, twenty-nine billion, one hundred twenty-five million, one hundred twenty-five thousand, two hundred fifty-two".