18884975347 has 8 divisors (see below), whose sum is σ = 21584665952. Its totient is φ = 16185744000.

The previous prime is 18884975303. The next prime is 18884975371. The reversal of 18884975347 is 74357948881.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18884975347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18884975377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21654 + ... + 195547.

It is an arithmetic number, because the mean of its divisors is an integer number (2698083244).

Almost surely, 2^18884975347 is an apocalyptic number.

18884975347 is a deficient number, since it is larger than the sum of its proper divisors (2699690605).

18884975347 is a wasteful number, since it uses less digits than its factorization.

18884975347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229629.

The product of its digits is 54190080, while the sum is 64.

It can be divided in two parts, 188849 and 75347, that added together give a square (264196 = 514²).

The spelling of 18884975347 in words is "eighteen billion, eight hundred eighty-four million, nine hundred seventy-five thousand, three hundred forty-seven".