12909079926720 has 560 divisors, whose sum is σ = 49462144985088. Its totient is φ = 3186528491520.

The previous prime is 12909079926707. The next prime is 12909079926749. The reversal of 12909079926720 is 2762997090921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 18131707 + ... + 18830213.

Almost surely, 2^{12909079926720} is an apocalyptic number.

12909079926720 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 12909079926720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24731072492544).

12909079926720 is an abundant number, since it is smaller than the sum of its proper divisors (36553065058368).

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

12909079926720 is a wasteful number, since it uses less digits than its factorization.

12909079926720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698590 (or 698571 counting only the distinct ones).

The product of its (nonzero) digits is 15431472, while the sum is 63.

The spelling of 12909079926720 in words is "twelve trillion, nine hundred nine billion, seventy-nine million, nine hundred twenty-six thousand, seven hundred twenty".