12146265639 has 24 divisors (see below), whose sum is σ = 17617227680. Its totient is φ = 8064064512.

The previous prime is 12146265629. The next prime is 12146265647. The reversal of 12146265639 is 93656264121.

12146265639 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 6 + 2 + 6 + 5 + 639 = 666.

It is not a de Polignac number, because 12146265639 - 2²⁵ = 12112711207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12146265594 and 12146265603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12146265629) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2474862 + ... + 2479764.

Almost surely, 2^12146265639 is an apocalyptic number.

12146265639 is a deficient number, since it is larger than the sum of its proper divisors (5470962041).

12146265639 is a wasteful number, since it uses less digits than its factorization.

12146265639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5991 (or 5988 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The spelling of 12146265639 in words is "twelve billion, one hundred forty-six million, two hundred sixty-five thousand, six hundred thirty-nine".