10985495427 has 8 divisors (see below), whose sum is σ = 16274808080. Its totient is φ = 7323663600.

The previous prime is 10985495419. The next prime is 10985495459. The reversal of 10985495427 is 72459458901.

It is a happy number.

10985495427 is a `hidden beast` number, since 1 + 0 + 98 + 5 + 4 + 9 + 542 + 7 = 666.

10985495427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10985495427 - 2³ = 10985495419 is a prime.

It is a super-2 number, since 2×10985495427² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10985495407) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 203435074 + ... + 203435127.

It is an arithmetic number, because the mean of its divisors is an integer number (2034351010).

Almost surely, 2^10985495427 is an apocalyptic number.

10985495427 is a deficient number, since it is larger than the sum of its proper divisors (5289312653).

10985495427 is an equidigital number, since it uses as much as digits as its factorization.

10985495427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406870210 (or 406870204 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 10985495427 in words is "ten billion, nine hundred eighty-five million, four hundred ninety-five thousand, four hundred twenty-seven".