12734400020 has 48 divisors (see below), whose sum is σ = 28159790400. Its totient is φ = 4823942400.

The previous prime is 12734400017. The next prime is 12734400031. The reversal of 12734400020 is 2000443721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1687616 + ... + 1695144.

It is an arithmetic number, because the mean of its divisors is an integer number (586662300).

Almost surely, 2^12734400020 is an apocalyptic number.

12734400020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12734400020 is an abundant number, since it is smaller than the sum of its proper divisors (15425390380).

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

12734400020 is a wasteful number, since it uses less digits than its factorization.

12734400020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12008 (or 12006 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

Adding to 12734400020 its reverse (2000443721), we get a palindrome (14734843741).

The spelling of 12734400020 in words is "twelve billion, seven hundred thirty-four million, four hundred thousand, twenty".