77425532754473 has 2 divisors, whose sum is σ = 77425532754474. Its totient is φ = 77425532754472.

The previous prime is 77425532754439. The next prime is 77425532754569. The reversal of 77425532754473 is 37445723552477.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76551247913449 + 874284841024 = 8749357^2 + 935032^2 .

It is an emirp because it is prime and its reverse (37445723552477) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77425532754473 - 2²⁸ = 77425264319017 is a prime.

It is not a weakly prime, because it can be changed into another prime (77425532754413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38712766377236 + 38712766377237.

It is an arithmetic number, because the mean of its divisors is an integer number (38712766377237).

Almost surely, 2^{77425532754473} is an apocalyptic number.

It is an amenable number.

77425532754473 is a deficient number, since it is larger than the sum of its proper divisors (1).

77425532754473 is an equidigital number, since it uses as much as digits as its factorization.

77425532754473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 691488000, while the sum is 65.

The spelling of 77425532754473 in words is "seventy-seven trillion, four hundred twenty-five billion, five hundred thirty-two million, seven hundred fifty-four thousand, four hundred seventy-three".