4568444121 has 4 divisors (see below), whose sum is σ = 6091258832. Its totient is φ = 3045629412.

The previous prime is 4568444107. The next prime is 4568444123. The reversal of 4568444121 is 1214448654.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4568444121 - 2¹⁰ = 4568443097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4568444121.

It is not an unprimeable number, because it can be changed into a prime (4568444123) 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, 761407351 + ... + 761407356.

It is an arithmetic number, because the mean of its divisors is an integer number (1522814708).

Almost surely, 2^4568444121 is an apocalyptic number.

It is an amenable number.

4568444121 is a deficient number, since it is larger than the sum of its proper divisors (1522814711).

4568444121 is a wasteful number, since it uses less digits than its factorization.

4568444121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522814710.

The product of its digits is 122880, while the sum is 39.

The square root of 4568444121 is about 67590.2664664077. The cubic root of 4568444121 is about 1659.2918207524.

The spelling of 4568444121 in words is "four billion, five hundred sixty-eight million, four hundred forty-four thousand, one hundred twenty-one".