12547001400 has 96 divisors (see below), whose sum is σ = 40586866560. Its totient is φ = 3200391040.

The previous prime is 12547001399. The next prime is 12547001407. The reversal of 12547001400 is 410074521.

12547001400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12547001407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 440802 + ... + 468401.

It is an arithmetic number, because the mean of its divisors is an integer number (422779860).

Almost surely, 2^12547001400 is an apocalyptic number.

12547001400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12547001400 is an abundant number, since it is smaller than the sum of its proper divisors (28039865160).

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

12547001400 is a wasteful number, since it uses less digits than its factorization.

12547001400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909245 (or 909236 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

Adding to 12547001400 its reverse (410074521), we get a palindrome (12957075921).

The spelling of 12547001400 in words is "twelve billion, five hundred forty-seven million, one thousand, four hundred".