12109680285 has 16 divisors (see below), whose sum is σ = 19382269056. Its totient is φ = 6456235968.

The previous prime is 12109680283. The next prime is 12109680293. The reversal of 12109680285 is 58208690121.

It is a happy number.

It is not a de Polignac number, because 12109680285 - 2¹ = 12109680283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12109680283) 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, 96514 + ... + 183123.

It is an arithmetic number, because the mean of its divisors is an integer number (1211391816).

Almost surely, 2^12109680285 is an apocalyptic number.

12109680285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12109680285 is a deficient number, since it is larger than the sum of its proper divisors (7272588771).

12109680285 is a wasteful number, since it uses less digits than its factorization.

12109680285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282532.

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 12109680285 in words is "twelve billion, one hundred nine million, six hundred eighty thousand, two hundred eighty-five".