10778840881 has 2 divisors, whose sum is σ = 10778840882. Its totient is φ = 10778840880.

The previous prime is 10778840879. The next prime is 10778840893. The reversal of 10778840881 is 18804887701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7596865600 + 3181975281 = 87160^2 + 56409^2 .

It is a cyclic number.

It is not a de Polignac number, because 10778840881 - 2¹ = 10778840879 is a prime.

It is a super-2 number, since 2×10778840881² (a number of 21 digits) contains 22 as substring.

Together with 10778840879, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10778840861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5389420440 + 5389420441.

It is an arithmetic number, because the mean of its divisors is an integer number (5389420441).

Almost surely, 2^10778840881 is an apocalyptic number.

It is an amenable number.

10778840881 is a deficient number, since it is larger than the sum of its proper divisors (1).

10778840881 is an equidigital number, since it uses as much as digits as its factorization.

10778840881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 802816, while the sum is 52.

The spelling of 10778840881 in words is "ten billion, seven hundred seventy-eight million, eight hundred forty thousand, eight hundred eighty-one".