18448447832 has 32 divisors (see below), whose sum is σ = 35102496000. Its totient is φ = 9088684704.

The previous prime is 18448447807. The next prime is 18448447847. The reversal of 18448447832 is 23874484481.

It is a happy 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, 107723 + ... + 220229.

It is an arithmetic number, because the mean of its divisors is an integer number (1096953000).

Almost surely, 2^18448447832 is an apocalyptic number.

It is an amenable number.

18448447832 is a deficient number, since it is larger than the sum of its proper divisors (16654048168).

18448447832 is a wasteful number, since it uses less digits than its factorization.

18448447832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112815 (or 112811 counting only the distinct ones).

The product of its digits is 5505024, while the sum is 53.

The spelling of 18448447832 in words is "eighteen billion, four hundred forty-eight million, four hundred forty-seven thousand, eight hundred thirty-two".