20043573707 has 2 divisors, whose sum is σ = 20043573708. Its totient is φ = 20043573706.

The previous prime is 20043573701. The next prime is 20043573731. The reversal of 20043573707 is 70737534002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20043573707 is a prime.

It is not a weakly prime, because it can be changed into another prime (20043573701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021786853 + 10021786854.

It is an arithmetic number, because the mean of its divisors is an integer number (10021786854).

Almost surely, 2^20043573707 is an apocalyptic number.

20043573707 is a deficient number, since it is larger than the sum of its proper divisors (1).

20043573707 is an equidigital number, since it uses as much as digits as its factorization.

20043573707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 123480, while the sum is 38.

The spelling of 20043573707 in words is "twenty billion, forty-three million, five hundred seventy-three thousand, seven hundred seven".