8502721319 has 2 divisors, whose sum is σ = 8502721320. Its totient is φ = 8502721318.

The previous prime is 8502721307. The next prime is 8502721321. The reversal of 8502721319 is 9131272058.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8502721319 - 2⁴ = 8502721303 is a prime.

It is a super-2 number, since 2×8502721319² (a number of 21 digits) contains 22 as substring.

Together with 8502721321, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8502721519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4251360659 + 4251360660.

It is an arithmetic number, because the mean of its divisors is an integer number (4251360660).

Almost surely, 2^8502721319 is an apocalyptic number.

8502721319 is a deficient number, since it is larger than the sum of its proper divisors (1).

8502721319 is an equidigital number, since it uses as much as digits as its factorization.

8502721319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 8502721319 is about 92210.2018162849. The cubic root of 8502721319 is about 2041.0453215551.

The spelling of 8502721319 in words is "eight billion, five hundred two million, seven hundred twenty-one thousand, three hundred nineteen".