10242178865 has 16 divisors (see below), whose sum is σ = 12627067728. Its totient is φ = 7969591296.

The previous prime is 10242178841. The next prime is 10242178871. The reversal of 10242178865 is 56887124201.

It can be written as a sum of positive squares in 8 ways, for example, as 138109504 + 10104069361 = 11752^2 + 100519^2 .

It is a cyclic number.

It is not a de Polignac number, because 10242178865 - 2²⁴ = 10225401649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 671969 + ... + 687041.

It is an arithmetic number, because the mean of its divisors is an integer number (789191733).

Almost surely, 2^10242178865 is an apocalyptic number.

It is an amenable number.

10242178865 is a deficient number, since it is larger than the sum of its proper divisors (2384888863).

10242178865 is a wasteful number, since it uses less digits than its factorization.

10242178865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18788.

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 10242178865 in words is "ten billion, two hundred forty-two million, one hundred seventy-eight thousand, eight hundred sixty-five".