75305644650349 has 2 divisors, whose sum is σ = 75305644650350. Its totient is φ = 75305644650348.

The previous prime is 75305644650331. The next prime is 75305644650367. The reversal of 75305644650349 is 94305644650357.

It is a balanced prime because it is at equal distance from previous prime (75305644650331) and next prime (75305644650367).

It can be written as a sum of positive squares in only one way, i.e., 68043196368900 + 7262448281449 = 8248830^2 + 2694893^2 .

It is a cyclic number.

It is not a de Polignac number, because 75305644650349 - 2¹¹ = 75305644648301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75305644650319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37652822325174 + 37652822325175.

It is an arithmetic number, because the mean of its divisors is an integer number (37652822325175).

Almost surely, 2^{75305644650349} is an apocalyptic number.

It is an amenable number.

75305644650349 is a deficient number, since it is larger than the sum of its proper divisors (1).

75305644650349 is an equidigital number, since it uses as much as digits as its factorization.

75305644650349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296000, while the sum is 61.

The spelling of 75305644650349 in words is "seventy-five trillion, three hundred five billion, six hundred forty-four million, six hundred fifty thousand, three hundred forty-nine".