12791272357400 has 96 divisors (see below), whose sum is σ = 29786550346800. Its totient is φ = 5108456179200.

The previous prime is 12791272357373. The next prime is 12791272357403. The reversal of 12791272357400 is 475327219721.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12791272357403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 362433755 + ... + 362469045.

Almost surely, 2^{12791272357400} is an apocalyptic number.

12791272357400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12791272357400 is an abundant number, since it is smaller than the sum of its proper divisors (16995277989400).

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

12791272357400 is a wasteful number, since it uses less digits than its factorization.

12791272357400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38109 (or 38100 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 50.

The spelling of 12791272357400 in words is "twelve trillion, seven hundred ninety-one billion, two hundred seventy-two million, three hundred fifty-seven thousand, four hundred".