825469000981 has 2 divisors, whose sum is σ = 825469000982. Its totient is φ = 825469000980.

The previous prime is 825469000907. The next prime is 825469001039. The reversal of 825469000981 is 189000964528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 773089355025 + 52379645956 = 879255^2 + 228866^2 .

It is a cyclic number.

It is not a de Polignac number, because 825469000981 - 2⁹ = 825469000469 is a prime.

It is a super-2 number, since 2×825469000981² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (825469000781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412734500490 + 412734500491.

It is an arithmetic number, because the mean of its divisors is an integer number (412734500491).

Almost surely, 2^825469000981 is an apocalyptic number.

It is an amenable number.

825469000981 is a deficient number, since it is larger than the sum of its proper divisors (1).

825469000981 is an equidigital number, since it uses as much as digits as its factorization.

825469000981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 825469000981 in words is "eight hundred twenty-five billion, four hundred sixty-nine million, nine hundred eighty-one", and thus it is an aban number.