18631143125425 has 24 divisors (see below), whose sum is σ = 23151187354176. Its totient is φ = 14873585874240.

The previous prime is 18631143125411. The next prime is 18631143125429. The reversal of 18631143125425 is 52452134113681.

It is not a de Polignac number, because 18631143125425 - 2⁷ = 18631143125297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18631143125429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116578422 + ... + 116738128.

It is an arithmetic number, because the mean of its divisors is an integer number (964632806424).

Almost surely, 2^{18631143125425} is an apocalyptic number.

It is an amenable number.

18631143125425 is a deficient number, since it is larger than the sum of its proper divisors (4520044228751).

18631143125425 is a wasteful number, since it uses less digits than its factorization.

18631143125425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169497 (or 169492 counting only the distinct ones).

The product of its digits is 691200, while the sum is 46.

The spelling of 18631143125425 in words is "eighteen trillion, six hundred thirty-one billion, one hundred forty-three million, one hundred twenty-five thousand, four hundred twenty-five".