18234631768 has 64 divisors (see below), whose sum is σ = 36094014720. Its totient is φ = 8624179200.

The previous prime is 18234631763. The next prime is 18234631769. The reversal of 18234631768 is 86713643281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18234631763) 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 15 ways as a sum of consecutive naturals, for example, 3690996 + ... + 3695932.

It is an arithmetic number, because the mean of its divisors is an integer number (563968980).

Almost surely, 2^18234631768 is an apocalyptic number.

It is an amenable number.

18234631768 is a deficient number, since it is larger than the sum of its proper divisors (17859382952).

18234631768 is a wasteful number, since it uses less digits than its factorization.

18234631768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5308 (or 5304 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The spelling of 18234631768 in words is "eighteen billion, two hundred thirty-four million, six hundred thirty-one thousand, seven hundred sixty-eight".