4966179921 has 6 divisors (see below), whose sum is σ = 7173371010. Its totient is φ = 3310786608.

The previous prime is 4966179913. The next prime is 4966179931. The reversal of 4966179921 is 1299716694.

It is a happy number.

4966179921 is a `hidden beast` number, since 496 + 61 + 7 + 9 + 92 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4942793025 + 23386896 = 70305^2 + 4836^2 .

It is not a de Polignac number, because 4966179921 - 2³ = 4966179913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4966179931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 275898876 + ... + 275898893.

It is an arithmetic number, because the mean of its divisors is an integer number (1195561835).

Almost surely, 2^4966179921 is an apocalyptic number.

It is an amenable number.

4966179921 is a deficient number, since it is larger than the sum of its proper divisors (2207191089).

4966179921 is a wasteful number, since it uses less digits than its factorization.

4966179921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551797775 (or 551797772 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 4966179921 is about 70471.1282796011. The cubic root of 4966179921 is about 1706.1117863490. Note that the first 3 decimals are identical.

The spelling of 4966179921 in words is "four billion, nine hundred sixty-six million, one hundred seventy-nine thousand, nine hundred twenty-one".