20247624720019 has 2 divisors, whose sum is σ = 20247624720020. Its totient is φ = 20247624720018.

The previous prime is 20247624720007. The next prime is 20247624720067. The reversal of 20247624720019 is 91002742674202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20247624720019 - 2²⁵ = 20247591165587 is a prime.

It is a super-2 number, since 2×20247624720019² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20247624720319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10123812360009 + 10123812360010.

It is an arithmetic number, because the mean of its divisors is an integer number (10123812360010).

Almost surely, 2^{20247624720019} is an apocalyptic number.

20247624720019 is a deficient number, since it is larger than the sum of its proper divisors (1).

20247624720019 is an equidigital number, since it uses as much as digits as its factorization.

20247624720019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 20247624720019 in words is "twenty trillion, two hundred forty-seven billion, six hundred twenty-four million, seven hundred twenty thousand, nineteen".