77136336041 has 2 divisors, whose sum is σ = 77136336042. Its totient is φ = 77136336040.

The previous prime is 77136336019. The next prime is 77136336071. The reversal of 77136336041 is 14063363177.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65433640000 + 11702696041 = 255800^2 + 108179^2 .

It is an emirp because it is prime and its reverse (14063363177) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77136336041 - 2⁶ = 77136335977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77136336041.

It is not a weakly prime, because it can be changed into another prime (77136336071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38568168020 + 38568168021.

It is an arithmetic number, because the mean of its divisors is an integer number (38568168021).

Almost surely, 2^77136336041 is an apocalyptic number.

It is an amenable number.

77136336041 is a deficient number, since it is larger than the sum of its proper divisors (1).

77136336041 is an equidigital number, since it uses as much as digits as its factorization.

77136336041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 41.

The spelling of 77136336041 in words is "seventy-seven billion, one hundred thirty-six million, three hundred thirty-six thousand, forty-one".