8530369248421 has 2 divisors, whose sum is σ = 8530369248422. Its totient is φ = 8530369248420.

The previous prime is 8530369248319. The next prime is 8530369248433. The reversal of 8530369248421 is 1248429630358.

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., 6223278622500 + 2307090625921 = 2494650^2 + 1518911^2 .

It is a cyclic number.

It is not a de Polignac number, because 8530369248421 - 2¹⁵ = 8530369215653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8530369248481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4265184624210 + 4265184624211.

It is an arithmetic number, because the mean of its divisors is an integer number (4265184624211).

Almost surely, 2^{8530369248421} is an apocalyptic number.

It is an amenable number.

8530369248421 is a deficient number, since it is larger than the sum of its proper divisors (1).

8530369248421 is an equidigital number, since it uses as much as digits as its factorization.

8530369248421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9953280, while the sum is 55.

The spelling of 8530369248421 in words is "eight trillion, five hundred thirty billion, three hundred sixty-nine million, two hundred forty-eight thousand, four hundred twenty-one".