18848538771 has 16 divisors (see below), whose sum is σ = 25635419136. Its totient is φ = 12314228576.

The previous prime is 18848538763. The next prime is 18848538833. The reversal of 18848538771 is 17783584881.

It is a cyclic number.

It is not a de Polignac number, because 18848538771 - 2³ = 18848538763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18848536771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68536 + ... + 205898.

It is an arithmetic number, because the mean of its divisors is an integer number (1602213696).

Almost surely, 2^18848538771 is an apocalyptic number.

18848538771 is a deficient number, since it is larger than the sum of its proper divisors (6786880365).

18848538771 is a wasteful number, since it uses less digits than its factorization.

18848538771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138282.

The product of its digits is 12042240, while the sum is 60.

The spelling of 18848538771 in words is "eighteen billion, eight hundred forty-eight million, five hundred thirty-eight thousand, seven hundred seventy-one".