154856481623 has 2 divisors, whose sum is σ = 154856481624. Its totient is φ = 154856481622.

The previous prime is 154856481587. The next prime is 154856481643. The reversal of 154856481623 is 326184658451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 154856481623 - 2¹⁰ = 154856480599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154856481643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77428240811 + 77428240812.

It is an arithmetic number, because the mean of its divisors is an integer number (77428240812).

Almost surely, 2^154856481623 is an apocalyptic number.

154856481623 is a deficient number, since it is larger than the sum of its proper divisors (1).

154856481623 is an equidigital number, since it uses as much as digits as its factorization.

154856481623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5529600, while the sum is 53.

The spelling of 154856481623 in words is "one hundred fifty-four billion, eight hundred fifty-six million, four hundred eighty-one thousand, six hundred twenty-three".