77611466126417 has 2 divisors, whose sum is σ = 77611466126418. Its totient is φ = 77611466126416.

The previous prime is 77611466126401. The next prime is 77611466126423. The reversal of 77611466126417 is 71462166411677.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77487897003841 + 123569122576 = 8802721^2 + 351524^2 .

It is a cyclic number.

It is not a de Polignac number, because 77611466126417 - 2⁴ = 77611466126401 is a prime.

It is not a weakly prime, because it can be changed into another prime (77611466126017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38805733063208 + 38805733063209.

It is an arithmetic number, because the mean of its divisors is an integer number (38805733063209).

Almost surely, 2^{77611466126417} is an apocalyptic number.

It is an amenable number.

77611466126417 is a deficient number, since it is larger than the sum of its proper divisors (1).

77611466126417 is an equidigital number, since it uses as much as digits as its factorization.

77611466126417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14224896, while the sum is 59.

The spelling of 77611466126417 in words is "seventy-seven trillion, six hundred eleven billion, four hundred sixty-six million, one hundred twenty-six thousand, four hundred seventeen".