8449045949647 has 2 divisors, whose sum is σ = 8449045949648. Its totient is φ = 8449045949646.

The previous prime is 8449045949563. The next prime is 8449045949717. The reversal of 8449045949647 is 7469495409448.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8449045949647 - 2²⁷ = 8448911731919 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8449045949647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8449045949947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4224522974823 + 4224522974824.

It is an arithmetic number, because the mean of its divisors is an integer number (4224522974824).

Almost surely, 2^{8449045949647} is an apocalyptic number.

8449045949647 is a deficient number, since it is larger than the sum of its proper divisors (1).

8449045949647 is an equidigital number, since it uses as much as digits as its factorization.

8449045949647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1254113280, while the sum is 73.

The spelling of 8449045949647 in words is "eight trillion, four hundred forty-nine billion, forty-five million, nine hundred forty-nine thousand, six hundred forty-seven".