154650127726649 has 2 divisors, whose sum is σ = 154650127726650. Its totient is φ = 154650127726648.

The previous prime is 154650127726411. The next prime is 154650127726651. The reversal of 154650127726649 is 946627721056451.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148705830250000 + 5944297476649 = 12194500^2 + 2438093^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154650127726649 is a prime.

Together with 154650127726651, 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 (154650127726849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77325063863324 + 77325063863325.

It is an arithmetic number, because the mean of its divisors is an integer number (77325063863325).

Almost surely, 2^{154650127726649} is an apocalyptic number.

It is an amenable number.

154650127726649 is a deficient number, since it is larger than the sum of its proper divisors (1).

154650127726649 is an equidigital number, since it uses as much as digits as its factorization.

154650127726649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 152409600, while the sum is 65.

The spelling of 154650127726649 in words is "one hundred fifty-four trillion, six hundred fifty billion, one hundred twenty-seven million, seven hundred twenty-six thousand, six hundred forty-nine".