8474246274509 has 2 divisors, whose sum is σ = 8474246274510. Its totient is φ = 8474246274508.

The previous prime is 8474246274499. The next prime is 8474246274511. The reversal of 8474246274509 is 9054726424748.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5052290152900 + 3421956121609 = 2247730^2 + 1849853^2 .

It is a cyclic number.

It is not a de Polignac number, because 8474246274509 - 2²⁰ = 8474245225933 is a prime.

Together with 8474246274511, 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 (8474246274539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4237123137254 + 4237123137255.

It is an arithmetic number, because the mean of its divisors is an integer number (4237123137255).

Almost surely, 2^{8474246274509} is an apocalyptic number.

It is an amenable number.

8474246274509 is a deficient number, since it is larger than the sum of its proper divisors (1).

8474246274509 is an equidigital number, since it uses as much as digits as its factorization.

8474246274509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108380160, while the sum is 62.

The spelling of 8474246274509 in words is "eight trillion, four hundred seventy-four billion, two hundred forty-six million, two hundred seventy-four thousand, five hundred nine".