18078335484 has 24 divisors (see below), whose sum is σ = 46017581568. Its totient is φ = 5478283440.

The previous prime is 18078335459. The next prime is 18078335507. The reversal of 18078335484 is 48453387081.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 68478412 + ... + 68478675.

It is an arithmetic number, because the mean of its divisors is an integer number (1917399232).

Almost surely, 2^18078335484 is an apocalyptic number.

It is an amenable number.

18078335484 is an abundant number, since it is smaller than the sum of its proper divisors (27939246084).

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

18078335484 is a wasteful number, since it uses less digits than its factorization.

18078335484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136957105 (or 136957103 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 18078335484 in words is "eighteen billion, seventy-eight million, three hundred thirty-five thousand, four hundred eighty-four".