12650740686 has 24 divisors (see below), whose sum is σ = 27435104424. Its totient is φ = 4213041840.

The previous prime is 12650740667. The next prime is 12650740693. The reversal of 12650740686 is 68604705621.

12650740686 is a `hidden beast` number, since 1 + 26 + 507 + 40 + 6 + 86 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302461 + ... + 341736.

It is an arithmetic number, because the mean of its divisors is an integer number (1143129351).

Almost surely, 2^12650740686 is an apocalyptic number.

12650740686 is an abundant number, since it is smaller than the sum of its proper divisors (14784363738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12650740686 is a wasteful number, since it uses less digits than its factorization.

12650740686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645296 (or 645293 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 12650740686 in words is "twelve billion, six hundred fifty million, seven hundred forty thousand, six hundred eighty-six".