12500000004 has 24 divisors (see below), whose sum is σ = 29169151648. Its totient is φ = 4166311680.

The previous prime is 12499999999. The next prime is 12500000027. The reversal of 12500000004 is 40000000521.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129639 + ... + 204465.

Almost surely, 2^12500000004 is an apocalyptic number.

It is an amenable number.

12500000004 is an abundant number, since it is smaller than the sum of its proper divisors (16669151644).

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

12500000004 is a wasteful number, since it uses less digits than its factorization.

12500000004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88755 (or 88753 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

Adding to 12500000004 its reverse (40000000521), we get a palindrome (52500000525).

The spelling of 12500000004 in words is "twelve billion, five hundred million, four", and thus it is an aban number.