163468127849 has 4 divisors (see below), whose sum is σ = 176042599236. Its totient is φ = 150893656464.

The previous prime is 163468127843. The next prime is 163468127903. The reversal of 163468127849 is 948721864361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 948721864361 = 103 ⋅9210891887.

It can be written as a sum of positive squares in 2 ways, for example, as 89375287849 + 74092840000 = 298957^2 + 272200^2 .

It is a cyclic number.

It is not a de Polignac number, because 163468127849 - 2²⁴ = 163451350633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163468127843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6287235674 + ... + 6287235699.

It is an arithmetic number, because the mean of its divisors is an integer number (44010649809).

Almost surely, 2^163468127849 is an apocalyptic number.

It is an amenable number.

163468127849 is a deficient number, since it is larger than the sum of its proper divisors (12574471387).

163468127849 is a wasteful number, since it uses less digits than its factorization.

163468127849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12574471386.

The product of its digits is 13934592, while the sum is 59.

The spelling of 163468127849 in words is "one hundred sixty-three billion, four hundred sixty-eight million, one hundred twenty-seven thousand, eight hundred forty-nine".