77009247017 has 2 divisors, whose sum is σ = 77009247018. Its totient is φ = 77009247016.

The previous prime is 77009246953. The next prime is 77009247043. The reversal of 77009247017 is 71074290077.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54055785001 + 22953462016 = 232499^2 + 151504^2 .

It is a cyclic number.

It is not a de Polignac number, because 77009247017 - 2⁶ = 77009246953 is a prime.

It is a super-3 number, since 3×77009247017³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (77009249017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38504623508 + 38504623509.

It is an arithmetic number, because the mean of its divisors is an integer number (38504623509).

Almost surely, 2^77009247017 is an apocalyptic number.

It is an amenable number.

77009247017 is a deficient number, since it is larger than the sum of its proper divisors (1).

77009247017 is an equidigital number, since it uses as much as digits as its factorization.

77009247017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172872, while the sum is 44.

The spelling of 77009247017 in words is "seventy-seven billion, nine million, two hundred forty-seven thousand, seventeen".