18033817051 has 2 divisors, whose sum is σ = 18033817052. Its totient is φ = 18033817050.

The previous prime is 18033817027. The next prime is 18033817063. The reversal of 18033817051 is 15071833081.

It is a strong prime.

It is an emirp because it is prime and its reverse (15071833081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18033817051 - 2¹⁷ = 18033685979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18033817051.

It is not a weakly prime, because it can be changed into another prime (18033817091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9016908525 + 9016908526.

It is an arithmetic number, because the mean of its divisors is an integer number (9016908526).

Almost surely, 2^18033817051 is an apocalyptic number.

18033817051 is a deficient number, since it is larger than the sum of its proper divisors (1).

18033817051 is an equidigital number, since it uses as much as digits as its factorization.

18033817051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 37.

The spelling of 18033817051 in words is "eighteen billion, thirty-three million, eight hundred seventeen thousand, fifty-one".