12544464313240 has 32 divisors (see below), whose sum is σ = 29452220563680. Its totient is φ = 4799621128192.

The previous prime is 12544464313219. The next prime is 12544464313267. The reversal of 12544464313240 is 4231346444521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6817642729 + ... + 6817644568.

It is an arithmetic number, because the mean of its divisors is an integer number (920381892615).

Almost surely, 2^{12544464313240} is an apocalyptic number.

12544464313240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12544464313240 is an abundant number, since it is smaller than the sum of its proper divisors (16907756250440).

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

12544464313240 is a wasteful number, since it uses less digits than its factorization.

12544464313240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13635287331 (or 13635287327 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 43.

The spelling of 12544464313240 in words is "twelve trillion, five hundred forty-four billion, four hundred sixty-four million, three hundred thirteen thousand, two hundred forty".