8654471549 has 2 divisors, whose sum is σ = 8654471550. Its totient is φ = 8654471548.

The previous prime is 8654471543. The next prime is 8654471587. The reversal of 8654471549 is 9451744568.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7183749049 + 1470722500 = 84757^2 + 38350^2 .

It is a cyclic number.

It is not a de Polignac number, because 8654471549 - 2²⁸ = 8386036093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8654471549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8654471543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4327235774 + 4327235775.

It is an arithmetic number, because the mean of its divisors is an integer number (4327235775).

Almost surely, 2^8654471549 is an apocalyptic number.

It is an amenable number.

8654471549 is a deficient number, since it is larger than the sum of its proper divisors (1).

8654471549 is an equidigital number, since it uses as much as digits as its factorization.

8654471549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4838400, while the sum is 53.

The square root of 8654471549 is about 93029.4122791282. The cubic root of 8654471549 is about 2053.1161451535.

The spelling of 8654471549 in words is "eight billion, six hundred fifty-four million, four hundred seventy-one thousand, five hundred forty-nine".