18973200151 has 2 divisors, whose sum is σ = 18973200152. Its totient is φ = 18973200150.

The previous prime is 18973200143. The next prime is 18973200161. The reversal of 18973200151 is 15100237981.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18973200151 - 2³ = 18973200143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18973200151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18973200161) 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, 9486600075 + 9486600076.

It is an arithmetic number, because the mean of its divisors is an integer number (9486600076).

Almost surely, 2^18973200151 is an apocalyptic number.

18973200151 is a deficient number, since it is larger than the sum of its proper divisors (1).

18973200151 is an equidigital number, since it uses as much as digits as its factorization.

18973200151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 37.

The spelling of 18973200151 in words is "eighteen billion, nine hundred seventy-three million, two hundred thousand, one hundred fifty-one".