18490958338 has 8 divisors (see below), whose sum is σ = 27751758480. Its totient is φ = 9240372180.

The previous prime is 18490958323. The next prime is 18490958359. The reversal of 18490958338 is 83385909481.

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

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, 2548968 + ... + 2556211.

It is an arithmetic number, because the mean of its divisors is an integer number (3468969810).

Almost surely, 2^18490958338 is an apocalyptic number.

18490958338 is a deficient number, since it is larger than the sum of its proper divisors (9260800142).

18490958338 is a wasteful number, since it uses less digits than its factorization.

18490958338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106992.

The product of its (nonzero) digits is 7464960, while the sum is 58.

The spelling of 18490958338 in words is "eighteen billion, four hundred ninety million, nine hundred fifty-eight thousand, three hundred thirty-eight".