12463645431616 has 56 divisors (see below), whose sum is σ = 25386889856040. Its totient is φ = 6068971776000.

The previous prime is 12463645431599. The next prime is 12463645431619. The reversal of 12463645431616 is 61613454636421.

It can be written as a sum of positive squares in 4 ways, for example, as 506545358400 + 11957100073216 = 711720^2 + 3457904^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12463645431619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15410311 + ... + 16198918.

Almost surely, 2^{12463645431616} is an apocalyptic number.

12463645431616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12463645431616 is an abundant number, since it is smaller than the sum of its proper divisors (12923244424424).

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

12463645431616 is a wasteful number, since it uses less digits than its factorization.

12463645431616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31609403 (or 31609393 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 52.

The spelling of 12463645431616 in words is "twelve trillion, four hundred sixty-three billion, six hundred forty-five million, four hundred thirty-one thousand, six hundred sixteen".