18010562449 has 8 divisors (see below), whose sum is σ = 20018601792. Its totient is φ = 16064309040.

The previous prime is 18010562447. The next prime is 18010562473. The reversal of 18010562449 is 94426501081.

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 18010562449 - 2¹ = 18010562447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18010562447) 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, 15445869 + ... + 15447034.

It is an arithmetic number, because the mean of its divisors is an integer number (2502325224).

Almost surely, 2^18010562449 is an apocalyptic number.

It is an amenable number.

18010562449 is a deficient number, since it is larger than the sum of its proper divisors (2008039343).

18010562449 is a wasteful number, since it uses less digits than its factorization.

18010562449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30892967.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 18010562449 in words is "eighteen billion, ten million, five hundred sixty-two thousand, four hundred forty-nine".