12615276740720 has 80 divisors (see below), whose sum is σ = 29712211020000. Its totient is φ = 4980642484224.

The previous prime is 12615276740687. The next prime is 12615276740761. The reversal of 12615276740720 is 2704767251621.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×12615276740720² (a number of 27 digits) contains 22 as substring.

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, 2494331 + ... + 5608229.

It is an arithmetic number, because the mean of its divisors is an integer number (371402637750).

Almost surely, 2^{12615276740720} is an apocalyptic number.

12615276740720 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 12615276740720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14856105510000).

12615276740720 is an abundant number, since it is smaller than the sum of its proper divisors (17096934279280).

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

12615276740720 is a wasteful number, since it uses less digits than its factorization.

12615276740720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114570 (or 3114564 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 12615276740720 in words is "twelve trillion, six hundred fifteen billion, two hundred seventy-six million, seven hundred forty thousand, seven hundred twenty".