12408953856 has 88 divisors (see below), whose sum is σ = 35618684304. Its totient is φ = 3818127360.

The previous prime is 12408953849. The next prime is 12408953867. The reversal of 12408953856 is 65835980421.

It is a junction number, because it is equal to n+sod(n) for n = 12408953799 and 12408953808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115425 + ... + 195296.

Almost surely, 2^12408953856 is an apocalyptic number.

12408953856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12408953856 is an abundant number, since it is smaller than the sum of its proper divisors (23209730448).

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

12408953856 is a wasteful number, since it uses less digits than its factorization.

12408953856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310757 (or 310739 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 12408953856 in words is "twelve billion, four hundred eight million, nine hundred fifty-three thousand, eight hundred fifty-six".