163764475027 has 4 divisors (see below), whose sum is σ = 169411525920. Its totient is φ = 158117424136.

The previous prime is 163764475019. The next prime is 163764475037. The reversal of 163764475027 is 720574467361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163764475027 - 2³ = 163764475019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163764475037) 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 3 ways as a sum of consecutive naturals, for example, 2823525403 + ... + 2823525460.

It is an arithmetic number, because the mean of its divisors is an integer number (42352881480).

Almost surely, 2^163764475027 is an apocalyptic number.

163764475027 is a deficient number, since it is larger than the sum of its proper divisors (5647050893).

163764475027 is an equidigital number, since it uses as much as digits as its factorization.

163764475027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5647050892.

The product of its (nonzero) digits is 5927040, while the sum is 52.

The spelling of 163764475027 in words is "one hundred sixty-three billion, seven hundred sixty-four million, four hundred seventy-five thousand, twenty-seven".