12782604993 has 16 divisors (see below), whose sum is σ = 17531351040. Its totient is φ = 8280407376.

The previous prime is 12782604953. The next prime is 12782605019. The reversal of 12782604993 is 39940628721.

It is not a de Polignac number, because 12782604993 - 2¹⁰ = 12782603969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12782604953) 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, 306505 + ... + 345702.

It is an arithmetic number, because the mean of its divisors is an integer number (1095709440).

Almost surely, 2^12782604993 is an apocalyptic number.

It is an amenable number.

12782604993 is a deficient number, since it is larger than the sum of its proper divisors (4748746047).

12782604993 is a wasteful number, since it uses less digits than its factorization.

12782604993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652396.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 12782604993 in words is "twelve billion, seven hundred eighty-two million, six hundred four thousand, nine hundred ninety-three".