163823926019 has 4 divisors (see below), whose sum is σ = 176425766496. Its totient is φ = 151222085544.

The previous prime is 163823925961. The next prime is 163823926109. The reversal of 163823926019 is 910629328361.

It is a happy number.

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 163823926019 - 2³⁶ = 95104449283 is a prime.

It is a super-2 number, since 2×163823926019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163823926219) 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, 6300920219 + ... + 6300920244.

It is an arithmetic number, because the mean of its divisors is an integer number (44106441624).

Almost surely, 2^163823926019 is an apocalyptic number.

163823926019 is a deficient number, since it is larger than the sum of its proper divisors (12601840477).

163823926019 is a wasteful number, since it uses less digits than its factorization.

163823926019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12601840476.

The product of its (nonzero) digits is 839808, while the sum is 50.

The spelling of 163823926019 in words is "one hundred sixty-three billion, eight hundred twenty-three million, nine hundred twenty-six thousand, nineteen".