12812378487 has 8 divisors (see below), whose sum is σ = 17187976704. Its totient is φ = 8489182968.

The previous prime is 12812378483. The next prime is 12812378497. The reversal of 12812378487 is 78487321821.

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

It is not a de Polignac number, because 12812378487 - 2² = 12812378483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12812378483) 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, 13100103 + ... + 13101080.

It is an arithmetic number, because the mean of its divisors is an integer number (2148497088).

Almost surely, 2^12812378487 is an apocalyptic number.

12812378487 is a deficient number, since it is larger than the sum of its proper divisors (4375598217).

12812378487 is a wasteful number, since it uses less digits than its factorization.

12812378487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26201349.

The product of its digits is 1204224, while the sum is 51.

The spelling of 12812378487 in words is "twelve billion, eight hundred twelve million, three hundred seventy-eight thousand, four hundred eighty-seven".