12650579291 has 16 divisors (see below), whose sum is σ = 15451347456. Its totient is φ = 10110120576.

The previous prime is 12650579287. The next prime is 12650579309. The reversal of 12650579291 is 19297505621.

It is a cyclic number.

It is not a de Polignac number, because 12650579291 - 2² = 12650579287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12650579281) 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, 484031 + ... + 509496.

It is an arithmetic number, because the mean of its divisors is an integer number (965709216).

Almost surely, 2^12650579291 is an apocalyptic number.

12650579291 is a deficient number, since it is larger than the sum of its proper divisors (2800768165).

12650579291 is a wasteful number, since it uses less digits than its factorization.

12650579291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993658.

The product of its (nonzero) digits is 340200, while the sum is 47.

The spelling of 12650579291 in words is "twelve billion, six hundred fifty million, five hundred seventy-nine thousand, two hundred ninety-one".