18475549132 has 6 divisors (see below), whose sum is σ = 32332210988. Its totient is φ = 9237774564.

The previous prime is 18475549123. The next prime is 18475549133. The reversal of 18475549132 is 23194557481.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18475549133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2309443638 + ... + 2309443645.

Almost surely, 2^18475549132 is an apocalyptic number.

It is an amenable number.

18475549132 is a deficient number, since it is larger than the sum of its proper divisors (13856661856).

18475549132 is a wasteful number, since it uses less digits than its factorization.

18475549132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4618887287 (or 4618887285 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 49.

The spelling of 18475549132 in words is "eighteen billion, four hundred seventy-five million, five hundred forty-nine thousand, one hundred thirty-two".