9964726043 has 8 divisors (see below), whose sum is σ = 10005268896. Its totient is φ = 9924264000.

The previous prime is 9964726033. The next prime is 9964726061. The reversal of 9964726043 is 3406274699.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9964726043 is a prime.

It is a super-2 number, since 2×9964726043² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9964725982 and 9964726000.

It is not an unprimeable number, because it can be changed into a prime (9964726033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233330 + ... + 272712.

It is an arithmetic number, because the mean of its divisors is an integer number (1250658612).

Almost surely, 2^9964726043 is an apocalyptic number.

9964726043 is a deficient number, since it is larger than the sum of its proper divisors (40542853).

9964726043 is a wasteful number, since it uses less digits than its factorization.

9964726043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40405.

The product of its (nonzero) digits is 1959552, while the sum is 50.

The square root of 9964726043 is about 99823.4744085779. The cubic root of 9964726043 is about 2151.8985244499.

The spelling of 9964726043 in words is "nine billion, nine hundred sixty-four million, seven hundred twenty-six thousand, forty-three".