18634148632 has 32 divisors (see below), whose sum is σ = 38257045200. Its totient is φ = 8438569600.

The previous prime is 18634148591. The next prime is 18634148633. The reversal of 18634148632 is 23684143681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18634148633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369919 + ... + 417262.

Almost surely, 2^18634148632 is an apocalyptic number.

It is an amenable number.

18634148632 is an abundant number, since it is smaller than the sum of its proper divisors (19622896568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18634148632 is a wasteful number, since it uses less digits than its factorization.

18634148632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787467 (or 787463 counting only the distinct ones).

The product of its digits is 663552, while the sum is 46.

The spelling of 18634148632 in words is "eighteen billion, six hundred thirty-four million, one hundred forty-eight thousand, six hundred thirty-two".