18125084427 has 8 divisors (see below), whose sum is σ = 25217508864. Its totient is φ = 11558024808.

The previous prime is 18125084423. The next prime is 18125084479. The reversal of 18125084427 is 72448052181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18125084427 - 2² = 18125084423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18125084423) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 131341123 + ... + 131341260.

It is an arithmetic number, because the mean of its divisors is an integer number (3152188608).

Almost surely, 2^18125084427 is an apocalyptic number.

18125084427 is a deficient number, since it is larger than the sum of its proper divisors (7092424437).

18125084427 is a wasteful number, since it uses less digits than its factorization.

18125084427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262682409.

The product of its (nonzero) digits is 143360, while the sum is 42.

The spelling of 18125084427 in words is "eighteen billion, one hundred twenty-five million, eighty-four thousand, four hundred twenty-seven".