12499463600 has 120 divisors (see below), whose sum is σ = 33092642352. Its totient is φ = 4507776000.

The previous prime is 12499463591. The next prime is 12499463611. The reversal of 12499463600 is 636499421.

It is a happy number.

It is a Cunningham number, because it is equal to 111801²-1.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195650 + ... + 251550.

Almost surely, 2^12499463600 is an apocalyptic number.

12499463600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12499463600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16546321176).

12499463600 is an abundant number, since it is smaller than the sum of its proper divisors (20593178752).

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

12499463600 is a wasteful number, since it uses less digits than its factorization.

12499463600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55975 (or 55964 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 44.

The spelling of 12499463600 in words is "twelve billion, four hundred ninety-nine million, four hundred sixty-three thousand, six hundred".