18279304454 has 8 divisors (see below), whose sum is σ = 28087711848. Its totient is φ = 8916733840.

The previous prime is 18279304409. The next prime is 18279304481. The reversal of 18279304454 is 45440397281.

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

It is a junction number, because it is equal to n+sod(n) for n = 18279304399 and 18279304408.

It is a congruent 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, 111459092 + ... + 111459255.

It is an arithmetic number, because the mean of its divisors is an integer number (3510963981).

Almost surely, 2^18279304454 is an apocalyptic number.

18279304454 is a deficient number, since it is larger than the sum of its proper divisors (9808407394).

18279304454 is a wasteful number, since it uses less digits than its factorization.

18279304454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222918390.

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 18279304454 in words is "eighteen billion, two hundred seventy-nine million, three hundred four thousand, four hundred fifty-four".