18047368867 has 8 divisors (see below), whose sum is σ = 19714263552. Its totient is φ = 16384845000.

The previous prime is 18047368841. The next prime is 18047368903. The reversal of 18047368867 is 76886374081.

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 18047368867 - 2³¹ = 15899885219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18047368817) 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, 1084063 + ... + 1100584.

It is an arithmetic number, because the mean of its divisors is an integer number (2464282944).

Almost surely, 2^18047368867 is an apocalyptic number.

18047368867 is a deficient number, since it is larger than the sum of its proper divisors (1666894685).

18047368867 is a wasteful number, since it uses less digits than its factorization.

18047368867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185409.

The product of its (nonzero) digits is 10838016, while the sum is 58.

The spelling of 18047368867 in words is "eighteen billion, forty-seven million, three hundred sixty-eight thousand, eight hundred sixty-seven".