18452226378 has 8 divisors (see below), whose sum is σ = 36904452768. Its totient is φ = 6150742124.

The previous prime is 18452226347. The next prime is 18452226383. The reversal of 18452226378 is 87362225481.

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

18452226378 is an admirable number.

It is a Curzon number.

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, 1537685526 + ... + 1537685537.

It is an arithmetic number, because the mean of its divisors is an integer number (4613056596).

Almost surely, 2^18452226378 is an apocalyptic number.

18452226378 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.

18452226378 is a wasteful number, since it uses less digits than its factorization.

18452226378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3075371068.

The product of its digits is 1290240, while the sum is 48.

The spelling of 18452226378 in words is "eighteen billion, four hundred fifty-two million, two hundred twenty-six thousand, three hundred seventy-eight".