5445646729 has 2 divisors, whose sum is σ = 5445646730. Its totient is φ = 5445646728.

The previous prime is 5445646631. The next prime is 5445646751. The reversal of 5445646729 is 9276465445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4445822329 + 999824400 = 66677^2 + 31620^2 .

It is a cyclic number.

It is not a de Polignac number, because 5445646729 - 2¹¹ = 5445644681 is a prime.

It is not a weakly prime, because it can be changed into another prime (5445646799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2722823364 + 2722823365.

It is an arithmetic number, because the mean of its divisors is an integer number (2722823365).

Almost surely, 2^5445646729 is an apocalyptic number.

It is an amenable number.

5445646729 is a deficient number, since it is larger than the sum of its proper divisors (1).

5445646729 is an equidigital number, since it uses as much as digits as its factorization.

5445646729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7257600, while the sum is 52.

The square root of 5445646729 is about 73794.6253395191. The cubic root of 5445646729 is about 1759.3401806321.

The spelling of 5445646729 in words is "five billion, four hundred forty-five million, six hundred forty-six thousand, seven hundred twenty-nine".