12406258867 has 12 divisors (see below), whose sum is σ = 13135745080. Its totient is φ = 11684824128.

The previous prime is 12406258859. The next prime is 12406258877. The reversal of 12406258867 is 76885260421.

It is not a de Polignac number, because 12406258867 - 2³ = 12406258859 is a prime.

It is a super-2 number, since 2×12406258867² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12406258867.

It is not an unprimeable number, because it can be changed into a prime (12406258817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 557743 + ... + 579559.

Almost surely, 2^12406258867 is an apocalyptic number.

12406258867 is a deficient number, since it is larger than the sum of its proper divisors (729486213).

12406258867 is an equidigital number, since it uses as much as digits as its factorization.

12406258867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22182 (or 22009 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 12406258867 in words is "twelve billion, four hundred six million, two hundred fifty-eight thousand, eight hundred sixty-seven".