386661129077 has 2 divisors, whose sum is σ = 386661129078. Its totient is φ = 386661129076.

The previous prime is 386661129073. The next prime is 386661129121. The reversal of 386661129077 is 770921166683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217416105841 + 169245023236 = 466279^2 + 411394^2 .

It is an emirp because it is prime and its reverse (770921166683) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 386661129077 - 2² = 386661129073 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (386661129073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193330564538 + 193330564539.

It is an arithmetic number, because the mean of its divisors is an integer number (193330564539).

Almost surely, 2^386661129077 is an apocalyptic number.

It is an amenable number.

386661129077 is a deficient number, since it is larger than the sum of its proper divisors (1).

386661129077 is an equidigital number, since it uses as much as digits as its factorization.

386661129077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 56.

The spelling of 386661129077 in words is "three hundred eighty-six billion, six hundred sixty-one million, one hundred twenty-nine thousand, seventy-seven".