77059127897 has 2 divisors, whose sum is σ = 77059127898. Its totient is φ = 77059127896.

The previous prime is 77059127881. The next prime is 77059127933. The reversal of 77059127897 is 79872195077.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58168274761 + 18890853136 = 241181^2 + 137444^2 .

It is an emirp because it is prime and its reverse (79872195077) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77059127897 - 2⁴ = 77059127881 is a prime.

It is not a weakly prime, because it can be changed into another prime (77059127837) 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, 38529563948 + 38529563949.

It is an arithmetic number, because the mean of its divisors is an integer number (38529563949).

Almost surely, 2^77059127897 is an apocalyptic number.

It is an amenable number.

77059127897 is a deficient number, since it is larger than the sum of its proper divisors (1).

77059127897 is an equidigital number, since it uses as much as digits as its factorization.

77059127897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15558480, while the sum is 62.

The spelling of 77059127897 in words is "seventy-seven billion, fifty-nine million, one hundred twenty-seven thousand, eight hundred ninety-seven".