9373740687593 has 2 divisors, whose sum is σ = 9373740687594. Its totient is φ = 9373740687592.

The previous prime is 9373740687547. The next prime is 9373740687611. The reversal of 9373740687593 is 3957860473739.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6317998954969 + 3055741732624 = 2513563^2 + 1748068^2 .

It is an emirp because it is prime and its reverse (3957860473739) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9373740687593 - 2¹² = 9373740683497 is a prime.

It is not a weakly prime, because it can be changed into another prime (9373740687193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4686870343796 + 4686870343797.

It is an arithmetic number, because the mean of its divisors is an integer number (4686870343797).

Almost surely, 2^{9373740687593} is an apocalyptic number.

It is an amenable number.

9373740687593 is a deficient number, since it is larger than the sum of its proper divisors (1).

9373740687593 is an equidigital number, since it uses as much as digits as its factorization.

9373740687593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720135360, while the sum is 71.

The spelling of 9373740687593 in words is "nine trillion, three hundred seventy-three billion, seven hundred forty million, six hundred eighty-seven thousand, five hundred ninety-three".