4306040455721 has 2 divisors, whose sum is σ = 4306040455722. Its totient is φ = 4306040455720.

The previous prime is 4306040455627. The next prime is 4306040455771. The reversal of 4306040455721 is 1275540406034.

4306040455721 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., 2518442041600 + 1787598414121 = 1586960^2 + 1337011^2 .

It is a cyclic number.

It is not a de Polignac number, because 4306040455721 - 2¹⁸ = 4306040193577 is a prime.

It is not a weakly prime, because it can be changed into another prime (4306040455771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2153020227860 + 2153020227861.

It is an arithmetic number, because the mean of its divisors is an integer number (2153020227861).

Almost surely, 2^{4306040455721} is an apocalyptic number.

It is an amenable number.

4306040455721 is a deficient number, since it is larger than the sum of its proper divisors (1).

4306040455721 is an equidigital number, since it uses as much as digits as its factorization.

4306040455721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 4306040455721 in words is "four trillion, three hundred six billion, forty million, four hundred fifty-five thousand, seven hundred twenty-one".