30772668461609 has 2 divisors, whose sum is σ = 30772668461610. Its totient is φ = 30772668461608.

The previous prime is 30772668461573. The next prime is 30772668461663. The reversal of 30772668461609 is 90616486627703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21808871980009 + 8963796481600 = 4669997^2 + 2993960^2 .

It is an emirp because it is prime and its reverse (90616486627703) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30772668461609 is a prime.

It is not a weakly prime, because it can be changed into another prime (30772668466609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15386334230804 + 15386334230805.

It is an arithmetic number, because the mean of its divisors is an integer number (15386334230805).

Almost surely, 2^{30772668461609} is an apocalyptic number.

It is an amenable number.

30772668461609 is a deficient number, since it is larger than the sum of its proper divisors (1).

30772668461609 is an equidigital number, since it uses as much as digits as its factorization.

30772668461609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 109734912, while the sum is 65.

The spelling of 30772668461609 in words is "thirty trillion, seven hundred seventy-two billion, six hundred sixty-eight million, four hundred sixty-one thousand, six hundred nine".