12727640740 has 24 divisors (see below), whose sum is σ = 26800889472. Its totient is φ = 5077181280.

The previous prime is 12727640707. The next prime is 12727640743. The reversal of 12727640740 is 4704672721.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12727640693 and 12727640702.

It is not an unprimeable number, because it can be changed into a prime (12727640743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 859666 + ... + 874345.

It is an arithmetic number, because the mean of its divisors is an integer number (1116703728).

Almost surely, 2^12727640740 is an apocalyptic number.

12727640740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12727640740 is an abundant number, since it is smaller than the sum of its proper divisors (14073248732).

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

12727640740 is a wasteful number, since it uses less digits than its factorization.

12727640740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734387 (or 1734385 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 40.

The spelling of 12727640740 in words is "twelve billion, seven hundred twenty-seven million, six hundred forty thousand, seven hundred forty".