4335144344681 has 2 divisors, whose sum is σ = 4335144344682. Its totient is φ = 4335144344680.

The previous prime is 4335144344639. The next prime is 4335144344693. The reversal of 4335144344681 is 1864434415334.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3042111547225 + 1293032797456 = 1744165^2 + 1137116^2 .

It is a cyclic number.

It is not a de Polignac number, because 4335144344681 - 2⁶ = 4335144344617 is a prime.

It is a super-2 number, since 2×4335144344681² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4335144344611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2167572172340 + 2167572172341.

It is an arithmetic number, because the mean of its divisors is an integer number (2167572172341).

Almost surely, 2^{4335144344681} is an apocalyptic number.

It is an amenable number.

4335144344681 is a deficient number, since it is larger than the sum of its proper divisors (1).

4335144344681 is an equidigital number, since it uses as much as digits as its factorization.

4335144344681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6635520, while the sum is 50.

The spelling of 4335144344681 in words is "four trillion, three hundred thirty-five billion, one hundred forty-four million, three hundred forty-four thousand, six hundred eighty-one".