4879612321 has 4 divisors (see below), whose sum is σ = 4971680532. Its totient is φ = 4787544112.

The previous prime is 4879612313. The next prime is 4879612337. The reversal of 4879612321 is 1232169784.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1541661696 + 3337950625 = 39264^2 + 57775^2 .

It is a cyclic number.

It is not a de Polignac number, because 4879612321 - 2³ = 4879612313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4879612301) 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, 46034026 + ... + 46034131.

It is an arithmetic number, because the mean of its divisors is an integer number (1242920133).

Almost surely, 2^4879612321 is an apocalyptic number.

It is an amenable number.

4879612321 is a deficient number, since it is larger than the sum of its proper divisors (92068211).

4879612321 is an equidigital number, since it uses as much as digits as its factorization.

4879612321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92068210.

The product of its digits is 145152, while the sum is 43.

The square root of 4879612321 is about 69854.2219268098. The cubic root of 4879612321 is about 1696.1403001564.

The spelling of 4879612321 in words is "four billion, eight hundred seventy-nine million, six hundred twelve thousand, three hundred twenty-one".