76122517217 has 2 divisors, whose sum is σ = 76122517218. Its totient is φ = 76122517216.

The previous prime is 76122517213. The next prime is 76122517253. The reversal of 76122517217 is 71271522167.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57442188241 + 18680328976 = 239671^2 + 136676^2 .

It is an emirp because it is prime and its reverse (71271522167) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76122517217 - 2² = 76122517213 is a prime.

It is a super-2 number, since 2×76122517217² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (76122517213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38061258608 + 38061258609.

It is an arithmetic number, because the mean of its divisors is an integer number (38061258609).

Almost surely, 2^76122517217 is an apocalyptic number.

It is an amenable number.

76122517217 is a deficient number, since it is larger than the sum of its proper divisors (1).

76122517217 is an equidigital number, since it uses as much as digits as its factorization.

76122517217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82320, while the sum is 41.

The spelling of 76122517217 in words is "seventy-six billion, one hundred twenty-two million, five hundred seventeen thousand, two hundred seventeen".