12812509147 has 8 divisors (see below), whose sum is σ = 13464813296. Its totient is φ = 12176311392.

The previous prime is 12812509141. The next prime is 12812509159. The reversal of 12812509147 is 74190521821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12812509147 - 2⁷ = 12812509019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12812509141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4024968 + ... + 4028149.

It is an arithmetic number, because the mean of its divisors is an integer number (1683101662).

Almost surely, 2^12812509147 is an apocalyptic number.

12812509147 is a deficient number, since it is larger than the sum of its proper divisors (652304149).

12812509147 is an equidigital number, since it uses as much as digits as its factorization.

12812509147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8053197.

The product of its (nonzero) digits is 40320, while the sum is 40.

The spelling of 12812509147 in words is "twelve billion, eight hundred twelve million, five hundred nine thousand, one hundred forty-seven".