18135382576 has 20 divisors (see below), whose sum is σ = 35413979392. Its totient is φ = 8996291136.

The previous prime is 18135382567. The next prime is 18135382583. The reversal of 18135382576 is 67528353181.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4460415 + ... + 4464478.

Almost surely, 2^18135382576 is an apocalyptic number.

18135382576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18135382576 is a deficient number, since it is larger than the sum of its proper divisors (17278596816).

18135382576 is a wasteful number, since it uses less digits than its factorization.

18135382576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8925028 (or 8925022 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 49.

The spelling of 18135382576 in words is "eighteen billion, one hundred thirty-five million, three hundred eighty-two thousand, five hundred seventy-six".