881025068809 has 2 divisors, whose sum is σ = 881025068810. Its totient is φ = 881025068808.

The previous prime is 881025068773. The next prime is 881025068849. The reversal of 881025068809 is 908860520188.

881025068809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 697158201600 + 183866867209 = 834960^2 + 428797^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-881025068809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 881025068809.

It is not a weakly prime, because it can be changed into another prime (881025068849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440512534404 + 440512534405.

It is an arithmetic number, because the mean of its divisors is an integer number (440512534405).

Almost surely, 2^881025068809 is an apocalyptic number.

It is an amenable number.

881025068809 is a deficient number, since it is larger than the sum of its proper divisors (1).

881025068809 is an equidigital number, since it uses as much as digits as its factorization.

881025068809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2211840, while the sum is 55.

The spelling of 881025068809 in words is "eight hundred eighty-one billion, twenty-five million, sixty-eight thousand, eight hundred nine".