73194538579 has 2 divisors, whose sum is σ = 73194538580. Its totient is φ = 73194538578.

The previous prime is 73194538577. The next prime is 73194538583. The reversal of 73194538579 is 97583549137.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73194538579 - 2¹ = 73194538577 is a prime.

Together with 73194538577, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (73194538577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36597269289 + 36597269290.

It is an arithmetic number, because the mean of its divisors is an integer number (36597269290).

Almost surely, 2^73194538579 is an apocalyptic number.

73194538579 is a deficient number, since it is larger than the sum of its proper divisors (1).

73194538579 is an equidigital number, since it uses as much as digits as its factorization.

73194538579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28576800, while the sum is 61.

The spelling of 73194538579 in words is "seventy-three billion, one hundred ninety-four million, five hundred thirty-eight thousand, five hundred seventy-nine".