4334555681 has 2 divisors, whose sum is σ = 4334555682. Its totient is φ = 4334555680.

The previous prime is 4334555669. The next prime is 4334555723. The reversal of 4334555681 is 1865554334.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3411611281 + 922944400 = 58409^2 + 30380^2 .

It is a cyclic number.

It is not a de Polignac number, because 4334555681 - 2¹⁰ = 4334554657 is a prime.

It is a super-2 number, since 2×4334555681² = 37576745903378747522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4334555611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2167277840 + 2167277841.

It is an arithmetic number, because the mean of its divisors is an integer number (2167277841).

Almost surely, 2^4334555681 is an apocalyptic number.

It is an amenable number.

4334555681 is a deficient number, since it is larger than the sum of its proper divisors (1).

4334555681 is an equidigital number, since it uses as much as digits as its factorization.

4334555681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864000, while the sum is 44.

The square root of 4334555681 is about 65837.3426028117. The cubic root of 4334555681 is about 1630.4776951872.

The spelling of 4334555681 in words is "four billion, three hundred thirty-four million, five hundred fifty-five thousand, six hundred eighty-one".