18454699536 has 80 divisors (see below), whose sum is σ = 58676494464. Its totient is φ = 4867172352.

The previous prime is 18454699499. The next prime is 18454699547. The reversal of 18454699536 is 63599645481.

It is a self number, because there is not a number n which added to its sum of digits gives 18454699536.

It is an unprimeable number.

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, 2108121 + ... + 2116856.

Almost surely, 2^18454699536 is an apocalyptic number.

18454699536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18454699536 is an abundant number, since it is smaller than the sum of its proper divisors (40221794928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18454699536 is a wasteful number, since it uses less digits than its factorization.

18454699536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4225008 (or 4225002 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 60.

The spelling of 18454699536 in words is "eighteen billion, four hundred fifty-four million, six hundred ninety-nine thousand, five hundred thirty-six".