12406018865 has 8 divisors (see below), whose sum is σ = 14890886208. Its totient is φ = 9922372720.

The previous prime is 12406018811. The next prime is 12406018873. The reversal of 12406018865 is 56881060421.

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

It is a de Polignac number, because none of the positive numbers 2^k-12406018865 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282797 + ... + 323706.

It is an arithmetic number, because the mean of its divisors is an integer number (1861360776).

Almost surely, 2^12406018865 is an apocalyptic number.

It is an amenable number.

12406018865 is a deficient number, since it is larger than the sum of its proper divisors (2484867343).

12406018865 is an equidigital number, since it uses as much as digits as its factorization.

12406018865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610599.

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 12406018865 in words is "twelve billion, four hundred six million, eighteen thousand, eight hundred sixty-five".