18730940048 has 10 divisors (see below), whose sum is σ = 36291196374. Its totient is φ = 9365470016.

The previous prime is 18730940027. The next prime is 18730940071. The reversal of 18730940048 is 84004903781.

It can be written as a sum of positive squares in only one way, i.e., 16726766224 + 2004173824 = 129332^2 + 44768^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18730939990 and 18730940008.

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 as a sum of consecutive naturals, namely, 585341861 + ... + 585341892.

Almost surely, 2^18730940048 is an apocalyptic number.

It is an amenable number.

18730940048 is a deficient number, since it is larger than the sum of its proper divisors (17560256326).

18730940048 is a wasteful number, since it uses less digits than its factorization.

18730940048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170683761 (or 1170683755 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 18730940048 in words is "eighteen billion, seven hundred thirty million, nine hundred forty thousand, forty-eight".