18631258058648 has 32 divisors (see below), whose sum is σ = 34948925625600. Its totient is φ = 9311545114368.

The previous prime is 18631258058641. The next prime is 18631258058713. The reversal of 18631258058648 is 84685085213681.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18631258058641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372652340 + ... + 372702332.

It is an arithmetic number, because the mean of its divisors is an integer number (1092153925800).

Almost surely, 2^{18631258058648} is an apocalyptic number.

It is an amenable number.

18631258058648 is a deficient number, since it is larger than the sum of its proper divisors (16317667566952).

18631258058648 is a wasteful number, since it uses less digits than its factorization.

18631258058648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69491 (or 69487 counting only the distinct ones).

The product of its (nonzero) digits is 88473600, while the sum is 65.

The spelling of 18631258058648 in words is "eighteen trillion, six hundred thirty-one billion, two hundred fifty-eight million, fifty-eight thousand, six hundred forty-eight".