12816888849 has 16 divisors (see below), whose sum is σ = 19094068800. Its totient is φ = 8496854208.

The previous prime is 12816888841. The next prime is 12816888857. The reversal of 12816888849 is 94888861821.

It is an interprime number because it is at equal distance from previous prime (12816888841) and next prime (12816888857).

It is not a de Polignac number, because 12816888849 - 2³ = 12816888841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12816888841) 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, 1321144 + ... + 1330809.

It is an arithmetic number, because the mean of its divisors is an integer number (1193379300).

Almost surely, 2^12816888849 is an apocalyptic number.

It is an amenable number.

12816888849 is a deficient number, since it is larger than the sum of its proper divisors (6277179951).

12816888849 is a wasteful number, since it uses less digits than its factorization.

12816888849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2652141 (or 2652135 counting only the distinct ones).

The product of its digits is 14155776, while the sum is 63.

The spelling of 12816888849 in words is "twelve billion, eight hundred sixteen million, eight hundred eighty-eight thousand, eight hundred forty-nine".