18080376438 has 8 divisors (see below), whose sum is σ = 36160752888. Its totient is φ = 6026792144.

The previous prime is 18080376389. The next prime is 18080376439. The reversal of 18080376438 is 83467308081.

It is a sphenic number, since it is the product of 3 distinct primes.

18080376438 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18080376439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1506698031 + ... + 1506698042.

It is an arithmetic number, because the mean of its divisors is an integer number (4520094111).

Almost surely, 2^18080376438 is an apocalyptic number.

18080376438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18080376438 is a wasteful number, since it uses less digits than its factorization.

18080376438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3013396078.

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 18080376438 in words is "eighteen billion, eighty million, three hundred seventy-six thousand, four hundred thirty-eight".