20247504602747 has 2 divisors, whose sum is σ = 20247504602748. Its totient is φ = 20247504602746.

The previous prime is 20247504602729. The next prime is 20247504602783. The reversal of 20247504602747 is 74720640574202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20247504602747 - 2²⁶ = 20247437493883 is a prime.

It is a super-2 number, since 2×20247504602747² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20247504602695 and 20247504602704.

It is not a weakly prime, because it can be changed into another prime (20247504607747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10123752301373 + 10123752301374.

It is an arithmetic number, because the mean of its divisors is an integer number (10123752301374).

Almost surely, 2^{20247504602747} is an apocalyptic number.

20247504602747 is a deficient number, since it is larger than the sum of its proper divisors (1).

20247504602747 is an equidigital number, since it uses as much as digits as its factorization.

20247504602747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5268480, while the sum is 50.

The spelling of 20247504602747 in words is "twenty trillion, two hundred forty-seven billion, five hundred four million, six hundred two thousand, seven hundred forty-seven".