12635294205 has 16 divisors (see below), whose sum is σ = 20424890304. Its totient is φ = 6669350400.

The previous prime is 12635294201. The next prime is 12635294213. The reversal of 12635294205 is 50249253621.

It is not a de Polignac number, because 12635294205 - 2² = 12635294201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12635294201) 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, 4340571 + ... + 4343480.

It is an arithmetic number, because the mean of its divisors is an integer number (1276555644).

Almost surely, 2^12635294205 is an apocalyptic number.

12635294205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12635294205 is a deficient number, since it is larger than the sum of its proper divisors (7789596099).

12635294205 is an equidigital number, since it uses as much as digits as its factorization.

12635294205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8684156.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 12635294205 in words is "twelve billion, six hundred thirty-five million, two hundred ninety-four thousand, two hundred five".