12512403534400 has 168 divisors, whose sum is σ = 38385454441536. Its totient is φ = 3899969894400.

The previous prime is 12512403534311. The next prime is 12512403534413. The reversal of 12512403534400 is 443530421521.

It is a super-2 number, since 2×12512403534400² (a number of 27 digits) contains 22 as substring.

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, 50657659 + ... + 50904058.

Almost surely, 2^{12512403534400} is an apocalyptic number.

12512403534400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12512403534400 is an abundant number, since it is smaller than the sum of its proper divisors (25873050907136).

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

12512403534400 is a wasteful number, since it uses less digits than its factorization.

12512403534400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101561757 (or 101561742 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 12512403534400 its reverse (443530421521), we get a palindrome (12955933955921).

The spelling of 12512403534400 in words is "twelve trillion, five hundred twelve billion, four hundred three million, five hundred thirty-four thousand, four hundred".