9122645944 has 32 divisors (see below), whose sum is σ = 18124009200. Its totient is φ = 4289958400.

The previous prime is 9122645933. The next prime is 9122645947. The reversal of 9122645944 is 4495462219.

It is a happy number.

It is a super-2 number, since 2×9122645944² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9122645894 and 9122645903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9122645947) 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, 174222 + ... + 220450.

Almost surely, 2^9122645944 is an apocalyptic number.

It is an amenable number.

9122645944 is a deficient number, since it is larger than the sum of its proper divisors (9001363256).

9122645944 is a wasteful number, since it uses less digits than its factorization.

9122645944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47703 (or 47699 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The square root of 9122645944 is about 95512.5433856726. The cubic root of 9122645944 is about 2089.4898859593.

The spelling of 9122645944 in words is "nine billion, one hundred twenty-two million, six hundred forty-five thousand, nine hundred forty-four".