724828086909 has 6 divisors (see below), whose sum is σ = 1046973903326. Its totient is φ = 483218724600.

The previous prime is 724828086821. The next prime is 724828086919. The reversal of 724828086909 is 909680828427.

724828086909 is a `hidden beast` number, since 72 + 482 + 8 + 0 + 86 + 9 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 377579525625 + 347248561284 = 614475^2 + 589278^2 .

It is not a de Polignac number, because 724828086909 - 2¹¹ = 724828084861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724828086919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40268227042 + ... + 40268227059.

Almost surely, 2^724828086909 is an apocalyptic number.

It is an amenable number.

724828086909 is a deficient number, since it is larger than the sum of its proper divisors (322145816417).

724828086909 is a wasteful number, since it uses less digits than its factorization.

724828086909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80536454107 (or 80536454104 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 63.

The spelling of 724828086909 in words is "seven hundred twenty-four billion, eight hundred twenty-eight million, eighty-six thousand, nine hundred nine".