8280764440889 has 2 divisors, whose sum is σ = 8280764440890. Its totient is φ = 8280764440888.

The previous prime is 8280764440777. The next prime is 8280764440951. The reversal of 8280764440889 is 9880444670828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5528705742400 + 2752058698489 = 2351320^2 + 1658933^2 .

It is a cyclic number.

It is not a de Polignac number, because 8280764440889 - 2⁴⁰ = 7181252813113 is a prime.

It is a super-2 number, since 2×8280764440889² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8280764442889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4140382220444 + 4140382220445.

It is an arithmetic number, because the mean of its divisors is an integer number (4140382220445).

Almost surely, 2^{8280764440889} is an apocalyptic number.

It is an amenable number.

8280764440889 is a deficient number, since it is larger than the sum of its proper divisors (1).

8280764440889 is an equidigital number, since it uses as much as digits as its factorization.

8280764440889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 198180864, while the sum is 68.

The spelling of 8280764440889 in words is "eight trillion, two hundred eighty billion, seven hundred sixty-four million, four hundred forty thousand, eight hundred eighty-nine".