12782604987 has 24 divisors (see below), whose sum is σ = 18789655248. Its totient is φ = 8372462400.

The previous prime is 12782604953. The next prime is 12782605019. The reversal of 12782604987 is 78940628721.

It is a happy number.

12782604987 is a `hidden beast` number, since 1 + 27 + 8 + 2 + 604 + 9 + 8 + 7 = 666.

It is not a de Polignac number, because 12782604987 - 2¹⁵ = 12782572219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12782604937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87937 + ... + 182477.

It is an arithmetic number, because the mean of its divisors is an integer number (782902302).

Almost surely, 2^12782604987 is an apocalyptic number.

12782604987 is a deficient number, since it is larger than the sum of its proper divisors (6007050261).

12782604987 is a wasteful number, since it uses less digits than its factorization.

12782604987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94811 (or 94808 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 12782604987 in words is "twelve billion, seven hundred eighty-two million, six hundred four thousand, nine hundred eighty-seven".