8084880408821 has 2 divisors, whose sum is σ = 8084880408822. Its totient is φ = 8084880408820.

The previous prime is 8084880408811. The next prime is 8084880408827. The reversal of 8084880408821 is 1288040884808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4626861228196 + 3458019180625 = 2151014^2 + 1859575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8084880408821 is a prime.

It is a super-2 number, since 2×8084880408821² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8084880408827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4042440204410 + 4042440204411.

It is an arithmetic number, because the mean of its divisors is an integer number (4042440204411).

Almost surely, 2^{8084880408821} is an apocalyptic number.

It is an amenable number.

8084880408821 is a deficient number, since it is larger than the sum of its proper divisors (1).

8084880408821 is an equidigital number, since it uses as much as digits as its factorization.

8084880408821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8388608, while the sum is 59.

The spelling of 8084880408821 in words is "eight trillion, eighty-four billion, eight hundred eighty million, four hundred eight thousand, eight hundred twenty-one".