12695840539 has 8 divisors (see below), whose sum is σ = 12714604560. Its totient is φ = 12677092896.

The previous prime is 12695840537. The next prime is 12695840543. The reversal of 12695840539 is 93504859621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12695840539 - 2¹ = 12695840537 is a prime.

It is a super-2 number, since 2×12695840539² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12695840537) 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, 2600769 + ... + 2605645.

It is an arithmetic number, because the mean of its divisors is an integer number (1589325570).

Almost surely, 2^12695840539 is an apocalyptic number.

12695840539 is a deficient number, since it is larger than the sum of its proper divisors (18764021).

12695840539 is a wasteful number, since it uses less digits than its factorization.

12695840539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8189.

The product of its (nonzero) digits is 2332800, while the sum is 52.

The spelling of 12695840539 in words is "twelve billion, six hundred ninety-five million, eight hundred forty thousand, five hundred thirty-nine".