20332984747 has 2 divisors, whose sum is σ = 20332984748. Its totient is φ = 20332984746.

The previous prime is 20332984733. The next prime is 20332984751. The reversal of 20332984747 is 74748923302.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20332984747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20332984747.

It is not a weakly prime, because it can be changed into another prime (20332984717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166492373 + 10166492374.

It is an arithmetic number, because the mean of its divisors is an integer number (10166492374).

Almost surely, 2^20332984747 is an apocalyptic number.

20332984747 is a deficient number, since it is larger than the sum of its proper divisors (1).

20332984747 is an equidigital number, since it uses as much as digits as its factorization.

20332984747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 49.

The spelling of 20332984747 in words is "twenty billion, three hundred thirty-two million, nine hundred eighty-four thousand, seven hundred forty-seven".