154880464229609 has 2 divisors, whose sum is σ = 154880464229610. Its totient is φ = 154880464229608.

The previous prime is 154880464229593. The next prime is 154880464229611. The reversal of 154880464229609 is 906922464088451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92074522229209 + 62805942000400 = 9595547^2 + 7925020^2 .

It is an emirp because it is prime and its reverse (906922464088451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154880464229609 - 2⁴ = 154880464229593 is a prime.

Together with 154880464229611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (154880464229669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77440232114804 + 77440232114805.

It is an arithmetic number, because the mean of its divisors is an integer number (77440232114805).

Almost surely, 2^{154880464229609} is an apocalyptic number.

It is an amenable number.

154880464229609 is a deficient number, since it is larger than the sum of its proper divisors (1).

154880464229609 is an equidigital number, since it uses as much as digits as its factorization.

154880464229609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 238878720, while the sum is 68.

The spelling of 154880464229609 in words is "one hundred fifty-four trillion, eight hundred eighty billion, four hundred sixty-four million, two hundred twenty-nine thousand, six hundred nine".