154245624767489 has 2 divisors, whose sum is σ = 154245624767490. Its totient is φ = 154245624767488.

The previous prime is 154245624767473. The next prime is 154245624767527. The reversal of 154245624767489 is 984767426542451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80882682510400 + 73362942257089 = 8993480^2 + 8565217^2 .

It is a cyclic number.

It is not a de Polignac number, because 154245624767489 - 2⁴ = 154245624767473 is a prime.

It is a super-2 number, since 2×154245624767489² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (154245624764489) 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, 77122812383744 + 77122812383745.

It is an arithmetic number, because the mean of its divisors is an integer number (77122812383745).

Almost surely, 2^{154245624767489} is an apocalyptic number.

It is an amenable number.

154245624767489 is a deficient number, since it is larger than the sum of its proper divisors (1).

154245624767489 is an equidigital number, since it uses as much as digits as its factorization.

154245624767489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3251404800, while the sum is 74.

The spelling of 154245624767489 in words is "one hundred fifty-four trillion, two hundred forty-five billion, six hundred twenty-four million, seven hundred sixty-seven thousand, four hundred eighty-nine".