12747077240 has 64 divisors (see below), whose sum is σ = 29629152000. Its totient is φ = 4930513920.

The previous prime is 12747077197. The next prime is 12747077303. The reversal of 12747077240 is 4277074721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1991966 + ... + 1998354.

It is an arithmetic number, because the mean of its divisors is an integer number (462955500).

Almost surely, 2^12747077240 is an apocalyptic number.

12747077240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12747077240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14814576000).

12747077240 is an abundant number, since it is smaller than the sum of its proper divisors (16882074760).

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

12747077240 is a wasteful number, since it uses less digits than its factorization.

12747077240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8040 (or 8036 counting only the distinct ones).

The product of its (nonzero) digits is 153664, while the sum is 41.

The spelling of 12747077240 in words is "twelve billion, seven hundred forty-seven million, seventy-seven thousand, two hundred forty".