10778912866 has 8 divisors (see below), whose sum is σ = 17119449900. Its totient is φ = 5072429568.

The previous prime is 10778912863. The next prime is 10778912869. The reversal of 10778912866 is 66821987701.

It is an interprime number because it is at equal distance from previous prime (10778912863) and next prime (10778912869).

It can be written as a sum of positive squares in 2 ways, for example, as 9834887241 + 944025625 = 99171^2 + 30725^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (10778912863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158513391 + ... + 158513458.

Almost surely, 2^10778912866 is an apocalyptic number.

10778912866 is a deficient number, since it is larger than the sum of its proper divisors (6340537034).

10778912866 is a wasteful number, since it uses less digits than its factorization.

10778912866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317026868.

The product of its (nonzero) digits is 2032128, while the sum is 55.

The spelling of 10778912866 in words is "ten billion, seven hundred seventy-eight million, nine hundred twelve thousand, eight hundred sixty-six".