76442422477 has 2 divisors, whose sum is σ = 76442422478. Its totient is φ = 76442422476.

The previous prime is 76442422453. The next prime is 76442422523. The reversal of 76442422477 is 77422424467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70771428841 + 5670993636 = 266029^2 + 75306^2 .

It is an emirp because it is prime and its reverse (77422424467) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76442422477 - 2²³ = 76434033869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76442422477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76442422417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38221211238 + 38221211239.

It is an arithmetic number, because the mean of its divisors is an integer number (38221211239).

Almost surely, 2^76442422477 is an apocalyptic number.

It is an amenable number.

76442422477 is a deficient number, since it is larger than the sum of its proper divisors (1).

76442422477 is an equidigital number, since it uses as much as digits as its factorization.

76442422477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4214784, while the sum is 49.

The spelling of 76442422477 in words is "seventy-six billion, four hundred forty-two million, four hundred twenty-two thousand, four hundred seventy-seven".