163875427513 has 4 divisors (see below), whose sum is σ = 187286202880. Its totient is φ = 140464652148.

The previous prime is 163875427511. The next prime is 163875427517. The reversal of 163875427513 is 315724578361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 315724578361 = 98543 ⋅3203927.

It is a cyclic number.

It is not a de Polignac number, because 163875427513 - 2¹ = 163875427511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163875427511) 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, 11705387673 + ... + 11705387686.

It is an arithmetic number, because the mean of its divisors is an integer number (46821550720).

Almost surely, 2^163875427513 is an apocalyptic number.

It is an amenable number.

163875427513 is a deficient number, since it is larger than the sum of its proper divisors (23410775367).

163875427513 is an equidigital number, since it uses as much as digits as its factorization.

163875427513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23410775366.

The product of its digits is 4233600, while the sum is 52.

The spelling of 163875427513 in words is "one hundred sixty-three billion, eight hundred seventy-five million, four hundred twenty-seven thousand, five hundred thirteen".