18339725005 has 32 divisors (see below), whose sum is σ = 25730482176. Its totient is φ = 12287294784.

The previous prime is 18339725003. The next prime is 18339725009. The reversal of 18339725005 is 50052793381.

It is a cyclic number.

It is not a de Polignac number, because 18339725005 - 2¹ = 18339725003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18339725003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 989332 + ... + 1007698.

It is an arithmetic number, because the mean of its divisors is an integer number (804077568).

Almost surely, 2^18339725005 is an apocalyptic number.

It is an amenable number.

18339725005 is a deficient number, since it is larger than the sum of its proper divisors (7390757171).

18339725005 is a wasteful number, since it uses less digits than its factorization.

18339725005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19033.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 18339725005 in words is "eighteen billion, three hundred thirty-nine million, seven hundred twenty-five thousand, five".