12784510347 has 16 divisors (see below), whose sum is σ = 19526372352. Its totient is φ = 7288479360.

The previous prime is 12784510339. The next prime is 12784510369. The reversal of 12784510347 is 74301548721.

It is not a de Polignac number, because 12784510347 - 2³ = 12784510339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12784510299 and 12784510308.

It is not an unprimeable number, because it can be changed into a prime (12784510147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 697198 + ... + 715299.

It is an arithmetic number, because the mean of its divisors is an integer number (1220398272).

Almost surely, 2^12784510347 is an apocalyptic number.

12784510347 is a deficient number, since it is larger than the sum of its proper divisors (6741862005).

12784510347 is a wasteful number, since it uses less digits than its factorization.

12784510347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412938.

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 12784510347 in words is "twelve billion, seven hundred eighty-four million, five hundred ten thousand, three hundred forty-seven".