18061377384 has 32 divisors (see below), whose sum is σ = 45157468320. Its totient is φ = 6019922496.

The previous prime is 18061377361. The next prime is 18061377491. The reversal of 18061377384 is 48377316081.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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, 315414 + ... + 368250.

It is an arithmetic number, because the mean of its divisors is an integer number (1411170885).

Almost surely, 2^18061377384 is an apocalyptic number.

It is an amenable number.

18061377384 is an abundant number, since it is smaller than the sum of its proper divisors (27096090936).

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

18061377384 is a wasteful number, since it uses less digits than its factorization.

18061377384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67089 (or 67085 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 18061377384 in words is "eighteen billion, sixty-one million, three hundred seventy-seven thousand, three hundred eighty-four".