5209726744 has 8 divisors (see below), whose sum is σ = 9768237660. Its totient is φ = 2604863368.

The previous prime is 5209726733. The next prime is 5209726747. The reversal of 5209726744 is 4476279025.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 5209726694 and 5209726703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5209726747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325607914 + ... + 325607929.

Almost surely, 2^5209726744 is an apocalyptic number.

It is an amenable number.

5209726744 is a deficient number, since it is larger than the sum of its proper divisors (4558510916).

5209726744 is a wasteful number, since it uses less digits than its factorization.

5209726744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651215849 (or 651215845 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 46.

The square root of 5209726744 is about 72178.4368353873. The cubic root of 5209726744 is about 1733.5577540126.

The spelling of 5209726744 in words is "five billion, two hundred nine million, seven hundred twenty-six thousand, seven hundred forty-four".