12718320272 has 40 divisors (see below), whose sum is σ = 29133105600. Its totient is φ = 5262751872.

The previous prime is 12718320221. The next prime is 12718320287. The reversal of 12718320272 is 27202381721.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1954622 + ... + 1961117.

It is an arithmetic number, because the mean of its divisors is an integer number (728327640).

Almost surely, 2^12718320272 is an apocalyptic number.

It is an amenable number.

12718320272 is an abundant number, since it is smaller than the sum of its proper divisors (16414785328).

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

12718320272 is a wasteful number, since it uses less digits than its factorization.

12718320272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3915783 (or 3915777 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The spelling of 12718320272 in words is "twelve billion, seven hundred eighteen million, three hundred twenty thousand, two hundred seventy-two".