12504123906 has 16 divisors (see below), whose sum is σ = 25009431744. Its totient is φ = 4167843984.

The previous prime is 12504123901. The next prime is 12504123913. The reversal of 12504123906 is 60932140521.

It is a super-2 number, since 2×12504123906² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12504123901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149811 + ... + 217833.

It is an arithmetic number, because the mean of its divisors is an integer number (1563089484).

Almost surely, 2^12504123906 is an apocalyptic number.

12504123906 is an abundant number, since it is smaller than the sum of its proper divisors (12505307838).

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

12504123906 is a wasteful number, since it uses less digits than its factorization.

12504123906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98665.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 12504123906 in words is "twelve billion, five hundred four million, one hundred twenty-three thousand, nine hundred six".