18950135125 has 8 divisors (see below), whose sum is σ = 23649768792. Its totient is φ = 15160108000.

The previous prime is 18950135077. The next prime is 18950135177. The reversal of 18950135125 is 52153105981.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5777064049 + 13173071076 = 76007^2 + 114774^2 .

It is not a de Polignac number, because 18950135125 - 2⁷ = 18950134997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75800416 + ... + 75800665.

It is an arithmetic number, because the mean of its divisors is an integer number (2956221099).

Almost surely, 2^18950135125 is an apocalyptic number.

It is an amenable number.

18950135125 is a deficient number, since it is larger than the sum of its proper divisors (4699633667).

18950135125 is an equidigital number, since it uses as much as digits as its factorization.

18950135125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151601096 (or 151601086 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 40.

The spelling of 18950135125 in words is "eighteen billion, nine hundred fifty million, one hundred thirty-five thousand, one hundred twenty-five".