9946782637633 has 4 divisors (see below), whose sum is σ = 10109844648148. Its totient is φ = 9783720627120.

The previous prime is 9946782637553. The next prime is 9946782637667. The reversal of 9946782637633 is 3367362876499.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4629778462864 + 5317004174769 = 2151692^2 + 2305863^2 .

It is a cyclic number.

It is not a de Polignac number, because 9946782637633 - 2¹⁷ = 9946782506561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9946782637133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81531005166 + ... + 81531005287.

It is an arithmetic number, because the mean of its divisors is an integer number (2527461162037).

Almost surely, 2^{9946782637633} is an apocalyptic number.

It is an amenable number.

9946782637633 is a deficient number, since it is larger than the sum of its proper divisors (163062010515).

9946782637633 is a wasteful number, since it uses less digits than its factorization.

9946782637633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163062010514.

The product of its digits is 1481421312, while the sum is 73.

The spelling of 9946782637633 in words is "nine trillion, nine hundred forty-six billion, seven hundred eighty-two million, six hundred thirty-seven thousand, six hundred thirty-three".