8113961350577 has 2 divisors, whose sum is σ = 8113961350578. Its totient is φ = 8113961350576.

The previous prime is 8113961350559. The next prime is 8113961350597. The reversal of 8113961350577 is 7750531693118.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7123769183521 + 990192167056 = 2669039^2 + 995084^2 .

It is a cyclic number.

It is not a de Polignac number, because 8113961350577 - 2⁸ = 8113961350321 is a prime.

It is not a weakly prime, because it can be changed into another prime (8113961350507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4056980675288 + 4056980675289.

It is an arithmetic number, because the mean of its divisors is an integer number (4056980675289).

Almost surely, 2^{8113961350577} is an apocalyptic number.

It is an amenable number.

8113961350577 is a deficient number, since it is larger than the sum of its proper divisors (1).

8113961350577 is an equidigital number, since it uses as much as digits as its factorization.

8113961350577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4762800, while the sum is 56.

The spelling of 8113961350577 in words is "eight trillion, one hundred thirteen billion, nine hundred sixty-one million, three hundred fifty thousand, five hundred seventy-seven".