12740015615 has 24 divisors (see below), whose sum is σ = 15641827344. Its totient is φ = 9961056000.

The previous prime is 12740015591. The next prime is 12740015623. The reversal of 12740015615 is 51651004721.

It is not a de Polignac number, because 12740015615 - 2⁶ = 12740015551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3030515 + ... + 3034715.

It is an arithmetic number, because the mean of its divisors is an integer number (651742806).

Almost surely, 2^12740015615 is an apocalyptic number.

12740015615 is a deficient number, since it is larger than the sum of its proper divisors (2901811729).

12740015615 is an equidigital number, since it uses as much as digits as its factorization.

12740015615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4491 (or 4430 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 12740015615 in words is "twelve billion, seven hundred forty million, fifteen thousand, six hundred fifteen".