34664447977 has 2 divisors, whose sum is σ = 34664447978. Its totient is φ = 34664447976.

The previous prime is 34664447959. The next prime is 34664448019. The reversal of 34664447977 is 77974446643.

34664447977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34241281936 + 423166041 = 185044^2 + 20571^2 .

It is a cyclic number.

It is not a de Polignac number, because 34664447977 - 2²⁷ = 34530230249 is a prime.

It is not a weakly prime, because it can be changed into another prime (34664457977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17332223988 + 17332223989.

It is an arithmetic number, because the mean of its divisors is an integer number (17332223989).

Almost surely, 2^34664447977 is an apocalyptic number.

It is an amenable number.

34664447977 is a deficient number, since it is larger than the sum of its proper divisors (1).

34664447977 is an equidigital number, since it uses as much as digits as its factorization.

34664447977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 85349376, while the sum is 61.

The spelling of 34664447977 in words is "thirty-four billion, six hundred sixty-four million, four hundred forty-seven thousand, nine hundred seventy-seven".