8726204428847 has 2 divisors, whose sum is σ = 8726204428848. Its totient is φ = 8726204428846.

The previous prime is 8726204428829. The next prime is 8726204428957. The reversal of 8726204428847 is 7488244026278.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8726204428847 is a prime.

It is a super-2 number, since 2×8726204428847² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8726204428847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8726204428147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4363102214423 + 4363102214424.

It is an arithmetic number, because the mean of its divisors is an integer number (4363102214424).

Almost surely, 2^{8726204428847} is an apocalyptic number.

8726204428847 is a deficient number, since it is larger than the sum of its proper divisors (1).

8726204428847 is an equidigital number, since it uses as much as digits as its factorization.

8726204428847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77070336, while the sum is 62.

The spelling of 8726204428847 in words is "eight trillion, seven hundred twenty-six billion, two hundred four million, four hundred twenty-eight thousand, eight hundred forty-seven".