73974000193 has 2 divisors, whose sum is σ = 73974000194. Its totient is φ = 73974000192.

The previous prime is 73974000179. The next prime is 73974000229. The reversal of 73974000193 is 39100047937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67546450609 + 6427549584 = 259897^2 + 80172^2 .

It is an emirp because it is prime and its reverse (39100047937) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73974000193 - 2⁵ = 73974000161 is a prime.

It is not a weakly prime, because it can be changed into another prime (73974000293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36987000096 + 36987000097.

It is an arithmetic number, because the mean of its divisors is an integer number (36987000097).

Almost surely, 2^73974000193 is an apocalyptic number.

It is an amenable number.

73974000193 is a deficient number, since it is larger than the sum of its proper divisors (1).

73974000193 is an equidigital number, since it uses as much as digits as its factorization.

73974000193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142884, while the sum is 43.

The spelling of 73974000193 in words is "seventy-three billion, nine hundred seventy-four million, one hundred ninety-three", and thus it is an aban number.