10291427866 has 8 divisors (see below), whose sum is σ = 15451268724. Its totient is φ = 5141004960.

The previous prime is 10291427851. The next prime is 10291427873. The reversal of 10291427866 is 66872419201.

10291427866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10145525625 + 145902241 = 100725^2 + 12079^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2351755 + ... + 2356126.

Almost surely, 2^10291427866 is an apocalyptic number.

10291427866 is a deficient number, since it is larger than the sum of its proper divisors (5159840858).

10291427866 is a wasteful number, since it uses less digits than its factorization.

10291427866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4708976.

The product of its (nonzero) digits is 290304, while the sum is 46.

It can be divided in two parts, 1029 and 1427866, that added together give a triangular number (1428895 = T₁₆₉₀).

The spelling of 10291427866 in words is "ten billion, two hundred ninety-one million, four hundred twenty-seven thousand, eight hundred sixty-six".