18006528952 has 8 divisors (see below), whose sum is σ = 33762241800. Its totient is φ = 9003264472.

The previous prime is 18006528923. The next prime is 18006528959. The reversal of 18006528952 is 25982560081.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18006528959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125408052 + ... + 1125408067.

It is an arithmetic number, because the mean of its divisors is an integer number (4220280225).

Almost surely, 2^18006528952 is an apocalyptic number.

It is an amenable number.

18006528952 is a deficient number, since it is larger than the sum of its proper divisors (15755712848).

18006528952 is a wasteful number, since it uses less digits than its factorization.

18006528952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250816125 (or 2250816121 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 46.

The spelling of 18006528952 in words is "eighteen billion, six million, five hundred twenty-eight thousand, nine hundred fifty-two".