53694766369 has 2 divisors, whose sum is σ = 53694766370. Its totient is φ = 53694766368.

The previous prime is 53694766319. The next prime is 53694766423. The reversal of 53694766369 is 96366749635.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30106414144 + 23588352225 = 173512^2 + 153585^2 .

It is a cyclic number.

It is not a de Polignac number, because 53694766369 - 2¹³ = 53694758177 is a prime.

It is a super-2 number, since 2×53694766369² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53694766369.

It is not a weakly prime, because it can be changed into another prime (53694766319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26847383184 + 26847383185.

It is an arithmetic number, because the mean of its divisors is an integer number (26847383185).

Almost surely, 2^53694766369 is an apocalyptic number.

It is an amenable number.

53694766369 is a deficient number, since it is larger than the sum of its proper divisors (1).

53694766369 is an equidigital number, since it uses as much as digits as its factorization.

53694766369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 132269760, while the sum is 64.

The spelling of 53694766369 in words is "fifty-three billion, six hundred ninety-four million, seven hundred sixty-six thousand, three hundred sixty-nine".