12712083400 has 24 divisors (see below), whose sum is σ = 29555594370. Its totient is φ = 5084833280.

The previous prime is 12712083389. The next prime is 12712083413. The reversal of 12712083400 is 438021721.

It can be written as a sum of positive squares in 3 ways, for example, as 9572274244 + 3139809156 = 97838^2 + 56034^2 .

It is a super-4 number, since 4×12712083400⁴ (a number of 42 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31780009 + ... + 31780408.

Almost surely, 2^12712083400 is an apocalyptic number.

12712083400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12712083400 is an abundant number, since it is smaller than the sum of its proper divisors (16843510970).

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

12712083400 is a wasteful number, since it uses less digits than its factorization.

12712083400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63560433 (or 63560424 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The spelling of 12712083400 in words is "twelve billion, seven hundred twelve million, eighty-three thousand, four hundred".