4333139158921 has 2 divisors, whose sum is σ = 4333139158922. Its totient is φ = 4333139158920.

The previous prime is 4333139158841. The next prime is 4333139158963. The reversal of 4333139158921 is 1298519313334.

It is a happy number.

4333139158921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3577352349321 + 755786809600 = 1891389^2 + 869360^2 .

It is a cyclic number.

It is not a de Polignac number, because 4333139158921 - 2⁷ = 4333139158793 is a prime.

It is not a weakly prime, because it can be changed into another prime (4333139758921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2166569579460 + 2166569579461.

It is an arithmetic number, because the mean of its divisors is an integer number (2166569579461).

Almost surely, 2^{4333139158921} is an apocalyptic number.

It is an amenable number.

4333139158921 is a deficient number, since it is larger than the sum of its proper divisors (1).

4333139158921 is an equidigital number, since it uses as much as digits as its factorization.

4333139158921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2099520, while the sum is 52.

The spelling of 4333139158921 in words is "four trillion, three hundred thirty-three billion, one hundred thirty-nine million, one hundred fifty-eight thousand, nine hundred twenty-one".