12465939460650 has 192 divisors, whose sum is σ = 33418573574400. Its totient is φ = 3057041848320.

The previous prime is 12465939460649. The next prime is 12465939460747. The reversal of 12465939460650 is 5606493956421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 776347422 + ... + 776363478.

It is an arithmetic number, because the mean of its divisors is an integer number (174055070700).

Almost surely, 2^{12465939460650} is an apocalyptic number.

12465939460650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12465939460650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16709286787200).

12465939460650 is an abundant number, since it is smaller than the sum of its proper divisors (20952634113750).

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

12465939460650 is a wasteful number, since it uses less digits than its factorization.

12465939460650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17553 (or 17548 counting only the distinct ones).

The product of its (nonzero) digits is 41990400, while the sum is 60.

The spelling of 12465939460650 in words is "twelve trillion, four hundred sixty-five billion, nine hundred thirty-nine million, four hundred sixty thousand, six hundred fifty".