18272126125 has 32 divisors (see below), whose sum is σ = 24938259840. Its totient is φ = 13255920000.

The previous prime is 18272126101. The next prime is 18272126177. The reversal of 18272126125 is 52162127281.

It is a happy number.

It is not a de Polignac number, because 18272126125 - 2¹⁹ = 18271601837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 546130 + ... + 578620.

It is an arithmetic number, because the mean of its divisors is an integer number (779320620).

Almost surely, 2^18272126125 is an apocalyptic number.

It is an amenable number.

18272126125 is a deficient number, since it is larger than the sum of its proper divisors (6666133715).

18272126125 is a wasteful number, since it uses less digits than its factorization.

18272126125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32926 (or 32916 counting only the distinct ones).

The product of its digits is 26880, while the sum is 37.

The spelling of 18272126125 in words is "eighteen billion, two hundred seventy-two million, one hundred twenty-six thousand, one hundred twenty-five".