8380421250281 has 2 divisors, whose sum is σ = 8380421250282. Its totient is φ = 8380421250280.

The previous prime is 8380421250233. The next prime is 8380421250287. The reversal of 8380421250281 is 1820521240838.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6104773574656 + 2275647675625 = 2470784^2 + 1508525^2 .

It is a cyclic number.

It is not a de Polignac number, because 8380421250281 - 2²⁶ = 8380354141417 is a prime.

It is a super-2 number, since 2×8380421250281² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8380421250287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4190210625140 + 4190210625141.

It is an arithmetic number, because the mean of its divisors is an integer number (4190210625141).

Almost surely, 2^{8380421250281} is an apocalyptic number.

It is an amenable number.

8380421250281 is a deficient number, since it is larger than the sum of its proper divisors (1).

8380421250281 is an equidigital number, since it uses as much as digits as its factorization.

8380421250281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 245760, while the sum is 44.

The spelling of 8380421250281 in words is "eight trillion, three hundred eighty billion, four hundred twenty-one million, two hundred fifty thousand, two hundred eighty-one".