18448294672 has 10 divisors (see below), whose sum is σ = 35743570958. Its totient is φ = 9224147328.

The previous prime is 18448294661. The next prime is 18448294673. The reversal of 18448294672 is 27649284481.

It can be written as a sum of positive squares in only one way, i.e., 14128650496 + 4319644176 = 118864^2 + 65724^2 .

It is not an unprimeable number, because it can be changed into a prime (18448294673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576509193 + ... + 576509224.

Almost surely, 2^18448294672 is an apocalyptic number.

It is an amenable number.

18448294672 is a deficient number, since it is larger than the sum of its proper divisors (17295276286).

18448294672 is a wasteful number, since it uses less digits than its factorization.

18448294672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153018425 (or 1153018419 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 55.

The spelling of 18448294672 in words is "eighteen billion, four hundred forty-eight million, two hundred ninety-four thousand, six hundred seventy-two".