18150033947 has 2 divisors, whose sum is σ = 18150033948. Its totient is φ = 18150033946.

The previous prime is 18150033929. The next prime is 18150033961. The reversal of 18150033947 is 74933005181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18150033947 - 2²² = 18145839643 is a prime.

It is not a weakly prime, because it can be changed into another prime (18150033997) by changing a digit.

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, 9075016973 + 9075016974.

It is an arithmetic number, because the mean of its divisors is an integer number (9075016974).

Almost surely, 2^18150033947 is an apocalyptic number.

18150033947 is a deficient number, since it is larger than the sum of its proper divisors (1).

18150033947 is an equidigital number, since it uses as much as digits as its factorization.

18150033947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 18150033947 in words is "eighteen billion, one hundred fifty million, thirty-three thousand, nine hundred forty-seven".