18481853047 has 8 divisors (see below), whose sum is σ = 21123143552. Its totient is φ = 15840819000.

The previous prime is 18481853041. The next prime is 18481853087. The reversal of 18481853047 is 74035818481.

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-18481853047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18481853041) 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, 129172 + ... + 231622.

It is an arithmetic number, because the mean of its divisors is an integer number (2640392944).

Almost surely, 2^18481853047 is an apocalyptic number.

18481853047 is a deficient number, since it is larger than the sum of its proper divisors (2641290505).

18481853047 is a wasteful number, since it uses less digits than its factorization.

18481853047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128229.

The product of its (nonzero) digits is 860160, while the sum is 49.

The spelling of 18481853047 in words is "eighteen billion, four hundred eighty-one million, eight hundred fifty-three thousand, forty-seven".