10978582081 has 2 divisors, whose sum is σ = 10978582082. Its totient is φ = 10978582080.

The previous prime is 10978582073. The next prime is 10978582159. The reversal of 10978582081 is 18028587901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10977800625 + 781456 = 104775^2 + 884^2 .

It is a cyclic number.

It is not a de Polignac number, because 10978582081 - 2³ = 10978582073 is a prime.

It is a super-2 number, since 2×10978582081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10978582061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5489291040 + 5489291041.

It is an arithmetic number, because the mean of its divisors is an integer number (5489291041).

Almost surely, 2^10978582081 is an apocalyptic number.

It is an amenable number.

10978582081 is a deficient number, since it is larger than the sum of its proper divisors (1).

10978582081 is an equidigital number, since it uses as much as digits as its factorization.

10978582081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 49.

The spelling of 10978582081 in words is "ten billion, nine hundred seventy-eight million, five hundred eighty-two thousand, eighty-one".