18649542982 has 48 divisors (see below), whose sum is σ = 33560049600. Its totient is φ = 7745136000.

The previous prime is 18649542911. The next prime is 18649542983. The reversal of 18649542982 is 28924594681.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18649542983) 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 23 ways as a sum of consecutive naturals, for example, 583107 + ... + 614257.

It is an arithmetic number, because the mean of its divisors is an integer number (699167700).

Almost surely, 2^18649542982 is an apocalyptic number.

18649542982 is a deficient number, since it is larger than the sum of its proper divisors (14910506618).

18649542982 is a wasteful number, since it uses less digits than its factorization.

18649542982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31357 (or 31350 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 58.

The spelling of 18649542982 in words is "eighteen billion, six hundred forty-nine million, five hundred forty-two thousand, nine hundred eighty-two".