77065461713 has 2 divisors, whose sum is σ = 77065461714. Its totient is φ = 77065461712.

The previous prime is 77065461703. The next prime is 77065461757. The reversal of 77065461713 is 31716456077.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38591423809 + 38474037904 = 196447^2 + 196148^2 .

It is a cyclic number.

It is not a de Polignac number, because 77065461713 - 2¹⁸ = 77065199569 is a prime.

It is not a weakly prime, because it can be changed into another prime (77065461703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38532730856 + 38532730857.

It is an arithmetic number, because the mean of its divisors is an integer number (38532730857).

Almost surely, 2^77065461713 is an apocalyptic number.

It is an amenable number.

77065461713 is a deficient number, since it is larger than the sum of its proper divisors (1).

77065461713 is an equidigital number, since it uses as much as digits as its factorization.

77065461713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 740880, while the sum is 47.

The spelling of 77065461713 in words is "seventy-seven billion, sixty-five million, four hundred sixty-one thousand, seven hundred thirteen".