185239141081933 has 2 divisors, whose sum is σ = 185239141081934. Its totient is φ = 185239141081932.

The previous prime is 185239141081837. The next prime is 185239141081963. The reversal of 185239141081933 is 339180141932581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169551180677124 + 15687960404809 = 13021182^2 + 3960803^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-185239141081933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (185239141081963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92619570540966 + 92619570540967.

It is an arithmetic number, because the mean of its divisors is an integer number (92619570540967).

Almost surely, 2^{185239141081933} is an apocalyptic number.

It is an amenable number.

185239141081933 is a deficient number, since it is larger than the sum of its proper divisors (1).

185239141081933 is an equidigital number, since it uses as much as digits as its factorization.

185239141081933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5598720, while the sum is 58.

The spelling of 185239141081933 in words is "one hundred eighty-five trillion, two hundred thirty-nine billion, one hundred forty-one million, eighty-one thousand, nine hundred thirty-three".