18032952641 has 4 divisors (see below), whose sum is σ = 19672311984. Its totient is φ = 16393593300.

The previous prime is 18032952629. The next prime is 18032952643. The reversal of 18032952641 is 14625923081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18032952641 - 2³⁴ = 853083457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18032952643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 819679655 + ... + 819679676.

It is an arithmetic number, because the mean of its divisors is an integer number (4918077996).

Almost surely, 2^18032952641 is an apocalyptic number.

18032952641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18032952641 is a deficient number, since it is larger than the sum of its proper divisors (1639359343).

18032952641 is a wasteful number, since it uses less digits than its factorization.

18032952641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639359342.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 18032952641 in words is "eighteen billion, thirty-two million, nine hundred fifty-two thousand, six hundred forty-one".