12462640517 has 16 divisors (see below), whose sum is σ = 13306208832. Its totient is φ = 11631755520.

The previous prime is 12462640513. The next prime is 12462640529. The reversal of 12462640517 is 71504626421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12462640517 - 2² = 12462640513 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12462640513) 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, 1008983 + ... + 1021259.

It is an arithmetic number, because the mean of its divisors is an integer number (831638052).

Almost surely, 2^12462640517 is an apocalyptic number.

12462640517 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12462640517 is a deficient number, since it is larger than the sum of its proper divisors (843568315).

12462640517 is a wasteful number, since it uses less digits than its factorization.

12462640517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12788.

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 12462640517 in words is "twelve billion, four hundred sixty-two million, six hundred forty thousand, five hundred seventeen".