12916845885 has 32 divisors (see below), whose sum is σ = 21573734400. Its totient is φ = 6586952768.

The previous prime is 12916845883. The next prime is 12916845889. The reversal of 12916845885 is 58854861921.

It is a cyclic number.

It is not a de Polignac number, because 12916845885 - 2¹ = 12916845883 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12916845883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1190716 + ... + 1201514.

It is an arithmetic number, because the mean of its divisors is an integer number (674179200).

Almost surely, 2^12916845885 is an apocalyptic number.

12916845885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12916845885 is a deficient number, since it is larger than the sum of its proper divisors (8656888515).

12916845885 is a wasteful number, since it uses less digits than its factorization.

12916845885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14297.

The product of its digits is 5529600, while the sum is 57.

The spelling of 12916845885 in words is "twelve billion, nine hundred sixteen million, eight hundred forty-five thousand, eight hundred eighty-five".