72193064357 has 2 divisors, whose sum is σ = 72193064358. Its totient is φ = 72193064356.

The previous prime is 72193064291. The next prime is 72193064371. The reversal of 72193064357 is 75346039127.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63601813636 + 8591250721 = 252194^2 + 92689^2 .

It is an emirp because it is prime and its reverse (75346039127) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72193064357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72193064057) 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, 36096532178 + 36096532179.

It is an arithmetic number, because the mean of its divisors is an integer number (36096532179).

Almost surely, 2^72193064357 is an apocalyptic number.

It is an amenable number.

72193064357 is a deficient number, since it is larger than the sum of its proper divisors (1).

72193064357 is an equidigital number, since it uses as much as digits as its factorization.

72193064357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 952560, while the sum is 47.

The spelling of 72193064357 in words is "seventy-two billion, one hundred ninety-three million, sixty-four thousand, three hundred fifty-seven".