154868353217 has 8 divisors (see below), whose sum is σ = 156958545576. Its totient is φ = 152788234752.

The previous prime is 154868353207. The next prime is 154868353219. The reversal of 154868353217 is 712353868451.

It can be written as a sum of positive squares in 4 ways, for example, as 24847532161 + 130020821056 = 157631^2 + 360584^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 154868353217 - 2⁴ = 154868353201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154868353219) 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 in 7 ways as a sum of consecutive naturals, for example, 2487518 + ... + 2549015.

It is an arithmetic number, because the mean of its divisors is an integer number (19619818197).

Almost surely, 2^154868353217 is an apocalyptic number.

It is an amenable number.

154868353217 is a deficient number, since it is larger than the sum of its proper divisors (2090192359).

154868353217 is an equidigital number, since it uses as much as digits as its factorization.

154868353217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036947.

The product of its digits is 4838400, while the sum is 53.

The spelling of 154868353217 in words is "one hundred fifty-four billion, eight hundred sixty-eight million, three hundred fifty-three thousand, two hundred seventeen".