12810745476 has 72 divisors (see below), whose sum is σ = 33518885400. Its totient is φ = 4120596480.

The previous prime is 12810745427. The next prime is 12810745483. The reversal of 12810745476 is 67454701821.

12810745476 is a `hidden beast` number, since 1 + 28 + 10 + 74 + 547 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5375822400 + 7434923076 = 73320^2 + 86226^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2984740 + ... + 2989028.

It is an arithmetic number, because the mean of its divisors is an integer number (465540075).

Almost surely, 2^12810745476 is an apocalyptic number.

It is an amenable number.

12810745476 is an abundant number, since it is smaller than the sum of its proper divisors (20708139924).

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

12810745476 is a wasteful number, since it uses less digits than its factorization.

12810745476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7189 (or 7184 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 12810745476 in words is "twelve billion, eight hundred ten million, seven hundred forty-five thousand, four hundred seventy-six".