5518147867 has 4 divisors (see below), whose sum is σ = 5587997920. Its totient is φ = 5448297816.

The previous prime is 5518147837. The next prime is 5518147883. The reversal of 5518147867 is 7687418155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7687418155 = 5 ⋅1537483631.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5518147867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5518147837) 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, 34924908 + ... + 34925065.

It is an arithmetic number, because the mean of its divisors is an integer number (1396999480).

Almost surely, 2^5518147867 is an apocalyptic number.

5518147867 is a deficient number, since it is larger than the sum of its proper divisors (69850053).

5518147867 is an equidigital number, since it uses as much as digits as its factorization.

5518147867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69850052.

The product of its digits is 1881600, while the sum is 52.

The square root of 5518147867 is about 74284.2370022066. The cubic root of 5518147867 is about 1767.1134996056.

It can be divided in two parts, 551 and 8147867, that added together give a palindrome (8148418).

The spelling of 5518147867 in words is "five billion, five hundred eighteen million, one hundred forty-seven thousand, eight hundred sixty-seven".