5729251865 has 24 divisors (see below), whose sum is σ = 7103958792. Its totient is φ = 4432492800.

The previous prime is 5729251859. The next prime is 5729251867. The reversal of 5729251865 is 5681529275.

It can be written as a sum of positive squares in 4 ways, for example, as 2585519104 + 3143732761 = 50848^2 + 56069^2 .

It is not a de Polignac number, because 5729251865 - 2⁸ = 5729251609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5729251867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9532565 + ... + 9533165.

It is an arithmetic number, because the mean of its divisors is an integer number (295998283).

Almost surely, 2^5729251865 is an apocalyptic number.

It is an amenable number.

5729251865 is a deficient number, since it is larger than the sum of its proper divisors (1374706927).

5729251865 is an equidigital number, since it uses as much as digits as its factorization.

5729251865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097 (or 870 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 50.

The square root of 5729251865 is about 75691.8216520120. The cubic root of 5729251865 is about 1789.3665106401.

The spelling of 5729251865 in words is "five billion, seven hundred twenty-nine million, two hundred fifty-one thousand, eight hundred sixty-five".