10881292909 has 2 divisors, whose sum is σ = 10881292910. Its totient is φ = 10881292908.

The previous prime is 10881292883. The next prime is 10881292921. The reversal of 10881292909 is 90929218801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5928230025 + 4953062884 = 76995^2 + 70378^2 .

It is a cyclic number.

It is not a de Polignac number, because 10881292909 - 2¹³ = 10881284717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10881292979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5440646454 + 5440646455.

It is an arithmetic number, because the mean of its divisors is an integer number (5440646455).

Almost surely, 2^10881292909 is an apocalyptic number.

It is an amenable number.

10881292909 is a deficient number, since it is larger than the sum of its proper divisors (1).

10881292909 is an equidigital number, since it uses as much as digits as its factorization.

10881292909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 49.

The spelling of 10881292909 in words is "ten billion, eight hundred eighty-one million, two hundred ninety-two thousand, nine hundred nine".