12478609008 has 80 divisors (see below), whose sum is σ = 37925206560. Its totient is φ = 3914855424.

The previous prime is 12478609007. The next prime is 12478609067. The reversal of 12478609008 is 80090687421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12478609007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 842235 + ... + 856922.

It is an arithmetic number, because the mean of its divisors is an integer number (474065082).

Almost surely, 2^12478609008 is an apocalyptic number.

12478609008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12478609008 is an abundant number, since it is smaller than the sum of its proper divisors (25446597552).

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

12478609008 is a wasteful number, since it uses less digits than its factorization.

12478609008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699191 (or 1699179 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 12478609008 in words is "twelve billion, four hundred seventy-eight million, six hundred nine thousand, eight".