18132044452 has 6 divisors (see below), whose sum is σ = 31731077798. Its totient is φ = 9066022224.

The previous prime is 18132044449. The next prime is 18132044533. The reversal of 18132044452 is 25444023181.

It can be written as a sum of positive squares in only one way, i.e., 14164808256 + 3967236196 = 119016^2 + 62986^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2266505553 + ... + 2266505560.

Almost surely, 2^18132044452 is an apocalyptic number.

It is an amenable number.

18132044452 is a deficient number, since it is larger than the sum of its proper divisors (13599033346).

18132044452 is a wasteful number, since it uses less digits than its factorization.

18132044452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4533011117 (or 4533011115 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The spelling of 18132044452 in words is "eighteen billion, one hundred thirty-two million, forty-four thousand, four hundred fifty-two".