10868981897 has 2 divisors, whose sum is σ = 10868981898. Its totient is φ = 10868981896.

The previous prime is 10868981881. The next prime is 10868981923. The reversal of 10868981897 is 79818986801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5634604096 + 5234377801 = 75064^2 + 72349^2 .

It is a cyclic number.

It is not a de Polignac number, because 10868981897 - 2⁴ = 10868981881 is a prime.

It is not a weakly prime, because it can be changed into another prime (10868981857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5434490948 + 5434490949.

It is an arithmetic number, because the mean of its divisors is an integer number (5434490949).

Almost surely, 2^10868981897 is an apocalyptic number.

It is an amenable number.

10868981897 is a deficient number, since it is larger than the sum of its proper divisors (1).

10868981897 is an equidigital number, since it uses as much as digits as its factorization.

10868981897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13934592, while the sum is 65.

The spelling of 10868981897 in words is "ten billion, eight hundred sixty-eight million, nine hundred eighty-one thousand, eight hundred ninety-seven".