10985432644 has 6 divisors (see below), whose sum is σ = 19224507134. Its totient is φ = 5492716320.

The previous prime is 10985432641. The next prime is 10985432659. The reversal of 10985432644 is 44623458901.

It can be written as a sum of positive squares in only one way, i.e., 9872409600 + 1113023044 = 99360^2 + 33362^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10985432594 and 10985432603.

It is not an unprimeable number, because it can be changed into a prime (10985432641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1373179077 + ... + 1373179084.

Almost surely, 2^10985432644 is an apocalyptic number.

It is an amenable number.

10985432644 is a deficient number, since it is larger than the sum of its proper divisors (8239074490).

10985432644 is a wasteful number, since it uses less digits than its factorization.

10985432644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2746358165 (or 2746358163 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 10985432644 in words is "ten billion, nine hundred eighty-five million, four hundred thirty-two thousand, six hundred forty-four".