18736655468 has 48 divisors (see below), whose sum is σ = 35593012224. Its totient is φ = 8596450560.

The previous prime is 18736655467. The next prime is 18736655473. The reversal of 18736655468 is 86455663781.

It is not an unprimeable number, because it can be changed into a prime (18736655467) 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, 829403 + ... + 851693.

It is an arithmetic number, because the mean of its divisors is an integer number (741521088).

Almost surely, 2^18736655468 is an apocalyptic number.

It is an amenable number.

18736655468 is a deficient number, since it is larger than the sum of its proper divisors (16856356756).

18736655468 is a wasteful number, since it uses less digits than its factorization.

18736655468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22622 (or 22620 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 59.

The spelling of 18736655468 in words is "eighteen billion, seven hundred thirty-six million, six hundred fifty-five thousand, four hundred sixty-eight".