12915421757760 has 224 divisors, whose sum is σ = 41230025337600. Its totient is φ = 3425378844672.

The previous prime is 12915421757699. The next prime is 12915421757783. The reversal of 12915421757760 is 6775712451921.

It is a self number, because there is not a number n which added to its sum of digits gives 12915421757760.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154728516 + ... + 154811964.

Almost surely, 2^{12915421757760} is an apocalyptic number.

12915421757760 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 12915421757760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20615012668800).

12915421757760 is an abundant number, since it is smaller than the sum of its proper divisors (28314603579840).

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

12915421757760 is a wasteful number, since it uses less digits than its factorization.

12915421757760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84345 (or 84335 counting only the distinct ones).

The product of its (nonzero) digits is 7408800, while the sum is 57.

The spelling of 12915421757760 in words is "twelve trillion, nine hundred fifteen billion, four hundred twenty-one million, seven hundred fifty-seven thousand, seven hundred sixty".