12785876999 has 16 divisors (see below), whose sum is σ = 14764409856. Its totient is φ = 10845900000.

The previous prime is 12785876977. The next prime is 12785877007. The reversal of 12785876999 is 99967858721.

It is a cyclic number.

It is not a de Polignac number, because 12785876999 - 2¹⁶ = 12785811463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12785876959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252674 + ... + 299024.

It is an arithmetic number, because the mean of its divisors is an integer number (922775616).

Almost surely, 2^12785876999 is an apocalyptic number.

12785876999 is a deficient number, since it is larger than the sum of its proper divisors (1978532857).

12785876999 is a wasteful number, since it uses less digits than its factorization.

12785876999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46766.

The product of its digits is 137168640, while the sum is 71.

The spelling of 12785876999 in words is "twelve billion, seven hundred eighty-five million, eight hundred seventy-six thousand, nine hundred ninety-nine".