18356278048 has 12 divisors (see below), whose sum is σ = 36138922470. Its totient is φ = 9178139008.

The previous prime is 18356278007. The next prime is 18356278079. The reversal of 18356278048 is 84087265381.

It can be written as a sum of positive squares in only one way, i.e., 10705627024 + 7650651024 = 103468^2 + 87468^2 .

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 18356277986 and 18356278004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286816813 + ... + 286816876.

Almost surely, 2^18356278048 is an apocalyptic number.

It is an amenable number.

18356278048 is a deficient number, since it is larger than the sum of its proper divisors (17782644422).

18356278048 is an equidigital number, since it uses as much as digits as its factorization.

18356278048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573633699 (or 573633691 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 18356278048 in words is "eighteen billion, three hundred fifty-six million, two hundred seventy-eight thousand, forty-eight".