75243807680653 has 2 divisors, whose sum is σ = 75243807680654. Its totient is φ = 75243807680652.

The previous prime is 75243807680641. The next prime is 75243807680707. The reversal of 75243807680653 is 35608670834257.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45704995739209 + 29538811941444 = 6760547^2 + 5434962^2 .

It is an emirp because it is prime and its reverse (35608670834257) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75243807680653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75243807680623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37621903840326 + 37621903840327.

It is an arithmetic number, because the mean of its divisors is an integer number (37621903840327).

Almost surely, 2^{75243807680653} is an apocalyptic number.

It is an amenable number.

75243807680653 is a deficient number, since it is larger than the sum of its proper divisors (1).

75243807680653 is an equidigital number, since it uses as much as digits as its factorization.

75243807680653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 203212800, while the sum is 64.

The spelling of 75243807680653 in words is "seventy-five trillion, two hundred forty-three billion, eight hundred seven million, six hundred eighty thousand, six hundred fifty-three".