20247444793 has 2 divisors, whose sum is σ = 20247444794. Its totient is φ = 20247444792.

The previous prime is 20247444691. The next prime is 20247444881. The reversal of 20247444793 is 39744474202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19409226489 + 838218304 = 139317^2 + 28952^2 .

It is a cyclic number.

It is not a de Polignac number, because 20247444793 - 2³³ = 11657510201 is a prime.

It is not a weakly prime, because it can be changed into another prime (20247442793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10123722396 + 10123722397.

It is an arithmetic number, because the mean of its divisors is an integer number (10123722397).

Almost surely, 2^20247444793 is an apocalyptic number.

It is an amenable number.

20247444793 is a deficient number, since it is larger than the sum of its proper divisors (1).

20247444793 is an equidigital number, since it uses as much as digits as its factorization.

20247444793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 46.

The spelling of 20247444793 in words is "twenty billion, two hundred forty-seven million, four hundred forty-four thousand, seven hundred ninety-three".