9726950865636 has 45 divisors (see below), whose sum is σ = 25428317693779. Its totient is φ = 3242298242376.

The previous prime is 9726950865631. The next prime is 9726950865641. The reversal of 9726950865636 is 6365680596279.

The square root of 9726950865636 is 3118806.

It is a perfect power (a square), and thus also a powerful number.

9726950865636 is a `hidden beast` number, since 9 + 7 + 2 + 6 + 9 + 50 + 8 + 6 + 563 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (9726950865631) and next prime (9726950865641).

It is a super-2 number, since 2×9726950865636² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9726950865631) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 56051875 + ... + 56225141.

Almost surely, 2^{9726950865636} is an apocalyptic number.

9726950865636 is the 3118806-th square number.

It is an amenable number.

9726950865636 is an abundant number, since it is smaller than the sum of its proper divisors (15701366828143).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9726950865636 is an frugal number, since it uses more digits than its factorization.

9726950865636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346550 (or 173272 counting only the distinct ones).

The product of its (nonzero) digits is 881798400, while the sum is 72.

The spelling of 9726950865636 in words is "nine trillion, seven hundred twenty-six billion, nine hundred fifty million, eight hundred sixty-five thousand, six hundred thirty-six".