8542264309 has 2 divisors, whose sum is σ = 8542264310. Its totient is φ = 8542264308.

The previous prime is 8542264279. The next prime is 8542264369. The reversal of 8542264309 is 9034622458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6597013284 + 1945251025 = 81222^2 + 44105^2 .

It is a cyclic number.

It is not a de Polignac number, because 8542264309 - 2⁹ = 8542263797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8542264369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4271132154 + 4271132155.

It is an arithmetic number, because the mean of its divisors is an integer number (4271132155).

Almost surely, 2^8542264309 is an apocalyptic number.

It is an amenable number.

8542264309 is a deficient number, since it is larger than the sum of its proper divisors (1).

8542264309 is an equidigital number, since it uses as much as digits as its factorization.

8542264309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 43.

The square root of 8542264309 is about 92424.3707525239. The cubic root of 8542264309 is about 2044.2044764535.

The spelling of 8542264309 in words is "eight billion, five hundred forty-two million, two hundred sixty-four thousand, three hundred nine".