18528001049 has 8 divisors (see below), whose sum is σ = 19510941120. Its totient is φ = 17559842256.

The previous prime is 18528001033. The next prime is 18528001073. The reversal of 18528001049 is 94010082581.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18528001049 - 2⁴ = 18528001033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18528001549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3692747 + ... + 3697760.

It is an arithmetic number, because the mean of its divisors is an integer number (2438867640).

Almost surely, 2^18528001049 is an apocalyptic number.

It is an amenable number.

18528001049 is a deficient number, since it is larger than the sum of its proper divisors (982940071).

18528001049 is a wasteful number, since it uses less digits than its factorization.

18528001049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7390639.

The product of its (nonzero) digits is 23040, while the sum is 38.

The spelling of 18528001049 in words is "eighteen billion, five hundred twenty-eight million, one thousand, forty-nine".