12621812104 has 32 divisors (see below), whose sum is σ = 25920246240. Its totient is φ = 5714320000.

The previous prime is 12621812089. The next prime is 12621812111. The reversal of 12621812104 is 40121812621.

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, 263629 + ... + 307804.

It is an arithmetic number, because the mean of its divisors is an integer number (810007695).

Almost surely, 2^12621812104 is an apocalyptic number.

It is an amenable number.

12621812104 is an abundant number, since it is smaller than the sum of its proper divisors (13298434136).

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

12621812104 is a wasteful number, since it uses less digits than its factorization.

12621812104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571701 (or 571697 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The spelling of 12621812104 in words is "twelve billion, six hundred twenty-one million, eight hundred twelve thousand, one hundred four".