10447064640 has 112 divisors (see below), whose sum is σ = 36854952960. Its totient is φ = 2785881600.

The previous prime is 10447064629. The next prime is 10447064647. The reversal of 10447064640 is 4646074401.

10447064640 is a `hidden beast` number, since 1 + 0 + 4 + 4 + 7 + 0 + 6 + 4 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 10447064595 and 10447064604.

It is not an unprimeable number, because it can be changed into a prime (10447064647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 595936 + ... + 613215.

It is an arithmetic number, because the mean of its divisors is an integer number (329062080).

Almost surely, 2^10447064640 is an apocalyptic number.

10447064640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10447064640 is an abundant number, since it is smaller than the sum of its proper divisors (26407888320).

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

10447064640 is a wasteful number, since it uses less digits than its factorization.

10447064640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209177 (or 1209161 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 10447064640 in words is "ten billion, four hundred forty-seven million, sixty-four thousand, six hundred forty".