8521274719 has 2 divisors, whose sum is σ = 8521274720. Its totient is φ = 8521274718.

The previous prime is 8521274693. The next prime is 8521274731. The reversal of 8521274719 is 9174721258.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8521274719 - 2⁹ = 8521274207 is a prime.

It is a super-2 number, since 2×8521274719² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8521274119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4260637359 + 4260637360.

It is an arithmetic number, because the mean of its divisors is an integer number (4260637360).

Almost surely, 2^8521274719 is an apocalyptic number.

8521274719 is a deficient number, since it is larger than the sum of its proper divisors (1).

8521274719 is an equidigital number, since it uses as much as digits as its factorization.

8521274719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 46.

The square root of 8521274719 is about 92310.7508310923. The cubic root of 8521274719 is about 2042.5288003382.

The spelling of 8521274719 in words is "eight billion, five hundred twenty-one million, two hundred seventy-four thousand, seven hundred nineteen".