12451403422400 has 84 divisors (see below), whose sum is σ = 31385508724920. Its totient is φ = 4859084236800.

The previous prime is 12451403422379. The next prime is 12451403422417. The reversal of 12451403422400 is 422430415421.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94838390 + ... + 94969589.

It is an arithmetic number, because the mean of its divisors is an integer number (373637008630).

Almost surely, 2^{12451403422400} is an apocalyptic number.

12451403422400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12451403422400 is an abundant number, since it is smaller than the sum of its proper divisors (18934105302520).

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

12451403422400 is a wasteful number, since it uses less digits than its factorization.

12451403422400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189808042 (or 189808027 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 12451403422400 its reverse (422430415421), we get a palindrome (12873833837821).

The spelling of 12451403422400 in words is "twelve trillion, four hundred fifty-one billion, four hundred three million, four hundred twenty-two thousand, four hundred".