9943069650 has 48 divisors (see below), whose sum is σ = 26109337824. Its totient is φ = 2495514880.

The previous prime is 9943069627. The next prime is 9943069651. The reversal of 9943069650 is 569603499.

It is a happy number.

It is a super-2 number, since 2×9943069650² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 9943069593 and 9943069602.

It is not an unprimeable number, because it can be changed into a prime (9943069651) 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, 1947072 + ... + 1952171.

It is an arithmetic number, because the mean of its divisors is an integer number (543944538).

Almost surely, 2^9943069650 is an apocalyptic number.

9943069650 is an abundant number, since it is smaller than the sum of its proper divisors (16166268174).

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

9943069650 is a wasteful number, since it uses less digits than its factorization.

9943069650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3899275 (or 3899270 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 51.

The square root of 9943069650 is about 99714.9419595679. The cubic root of 9943069650 is about 2150.3384828542.

The spelling of 9943069650 in words is "nine billion, nine hundred forty-three million, sixty-nine thousand, six hundred fifty".