8724679297249 has 2 divisors, whose sum is σ = 8724679297250. Its totient is φ = 8724679297248.

The previous prime is 8724679297157. The next prime is 8724679297273. The reversal of 8724679297249 is 9427929764278.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6492813610000 + 2231865687249 = 2548100^2 + 1493943^2 .

It is a cyclic number.

It is not a de Polignac number, because 8724679297249 - 2¹¹ = 8724679295201 is a prime.

It is a super-2 number, since 2×8724679297249² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8724679292249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4362339648624 + 4362339648625.

It is an arithmetic number, because the mean of its divisors is an integer number (4362339648625).

Almost surely, 2^{8724679297249} is an apocalyptic number.

It is an amenable number.

8724679297249 is a deficient number, since it is larger than the sum of its proper divisors (1).

8724679297249 is an equidigital number, since it uses as much as digits as its factorization.

8724679297249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536288768, while the sum is 76.

The spelling of 8724679297249 in words is "eight trillion, seven hundred twenty-four billion, six hundred seventy-nine million, two hundred ninety-seven thousand, two hundred forty-nine".