12406873818 has 32 divisors (see below), whose sum is σ = 25646782464. Its totient is φ = 3998210112.

The previous prime is 12406873799. The next prime is 12406873841. The reversal of 12406873818 is 81837860421.

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, 143130 + ... + 212837.

It is an arithmetic number, because the mean of its divisors is an integer number (801461952).

Almost surely, 2^12406873818 is an apocalyptic number.

12406873818 is an abundant number, since it is smaller than the sum of its proper divisors (13239908646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12406873818 is a wasteful number, since it uses less digits than its factorization.

12406873818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356166.

The product of its (nonzero) digits is 516096, while the sum is 48.

The spelling of 12406873818 in words is "twelve billion, four hundred six million, eight hundred seventy-three thousand, eight hundred eighteen".