12039009686 has 16 divisors (see below), whose sum is σ = 19730389968. Its totient is φ = 5463890400.

The previous prime is 12039009683. The next prime is 12039009709. The reversal of 12039009686 is 68690093021.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12039009683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404645 + ... + 433376.

It is an arithmetic number, because the mean of its divisors is an integer number (1233149373).

Almost surely, 2^12039009686 is an apocalyptic number.

12039009686 is a deficient number, since it is larger than the sum of its proper divisors (7691380282).

12039009686 is a wasteful number, since it uses less digits than its factorization.

12039009686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838687.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 12039009686 in words is "twelve billion, thirty-nine million, nine thousand, six hundred eighty-six".