12579109263616 has 81 divisors (see below), whose sum is σ = 29209445633739. Its totient is φ = 5390876585472.

The previous prime is 12579109263593. The next prime is 12579109263653. The reversal of 12579109263616 is 61636290197521.

The square root of 12579109263616 is 3546704.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 397215015 + ... + 397246681.

Almost surely, 2^{12579109263616} is an apocalyptic number.

12579109263616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

12579109263616 is the 3546704-th square number.

It is an amenable number.

12579109263616 is an abundant number, since it is smaller than the sum of its proper divisors (16630336370123).

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

12579109263616 is an frugal number, since it uses more digits than its factorization.

12579109263616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63364 (or 31676 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 58.

The spelling of 12579109263616 in words is "twelve trillion, five hundred seventy-nine billion, one hundred nine million, two hundred sixty-three thousand, six hundred sixteen".