479809820161 has 16 divisors (see below), whose sum is σ = 556784409600. Its totient is φ = 404957543760.

The previous prime is 479809820153. The next prime is 479809820183. The reversal of 479809820161 is 161028908974.

It is a happy number.

It is not a de Polignac number, because 479809820161 - 2³ = 479809820153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479809820461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222211 + ... + 1004488.

It is an arithmetic number, because the mean of its divisors is an integer number (34799025600).

Almost surely, 2^479809820161 is an apocalyptic number.

It is an amenable number.

479809820161 is a deficient number, since it is larger than the sum of its proper divisors (76974589439).

479809820161 is a wasteful number, since it uses less digits than its factorization.

479809820161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227564.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 479809820161 in words is "four hundred seventy-nine billion, eight hundred nine million, eight hundred twenty thousand, one hundred sixty-one".