12735609215 has 16 divisors (see below), whose sum is σ = 17891979840. Its totient is φ = 8519988480.

The previous prime is 12735609203. The next prime is 12735609217. The reversal of 12735609215 is 51290653721.

It is not a de Polignac number, because 12735609215 - 2¹⁶ = 12735543679 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12735609217) 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, 4436060 + ... + 4438929.

It is an arithmetic number, because the mean of its divisors is an integer number (1118248740).

Almost surely, 2^12735609215 is an apocalyptic number.

12735609215 is a deficient number, since it is larger than the sum of its proper divisors (5156370625).

12735609215 is an equidigital number, since it uses as much as digits as its factorization.

12735609215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8875042.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 12735609215 in words is "twelve billion, seven hundred thirty-five million, six hundred nine thousand, two hundred fifteen".