12615311214 has 24 divisors (see below), whose sum is σ = 29818008792. Its totient is φ = 3822821520.

The previous prime is 12615311201. The next prime is 12615311237. The reversal of 12615311214 is 41211351621.

12615311214 is a `hidden beast` number, since 1 + 2 + 6 + 1 + 531 + 121 + 4 = 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, 31856649 + ... + 31857044.

It is an arithmetic number, because the mean of its divisors is an integer number (1242417033).

Almost surely, 2^12615311214 is an apocalyptic number.

12615311214 is an abundant number, since it is smaller than the sum of its proper divisors (17202697578).

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

12615311214 is a wasteful number, since it uses less digits than its factorization.

12615311214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63713712 (or 63713709 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

Adding to 12615311214 its reverse (41211351621), we get a palindrome (53826662835).

The spelling of 12615311214 in words is "twelve billion, six hundred fifteen million, three hundred eleven thousand, two hundred fourteen".