12488261640 has 64 divisors (see below), whose sum is σ = 37487448000. Its totient is φ = 3328188672.

The previous prime is 12488261603. The next prime is 12488261641. The reversal of 12488261640 is 4616288421.

It is a junction number, because it is equal to n+sod(n) for n = 12488261592 and 12488261601.

It is not an unprimeable number, because it can be changed into a prime (12488261641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173254 + ... + 234506.

It is an arithmetic number, because the mean of its divisors is an integer number (585741375).

Almost surely, 2^12488261640 is an apocalyptic number.

12488261640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12488261640 is an abundant number, since it is smaller than the sum of its proper divisors (24999186360).

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

12488261640 is a wasteful number, since it uses less digits than its factorization.

12488261640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62966 (or 62962 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 12488261640 in words is "twelve billion, four hundred eighty-eight million, two hundred sixty-one thousand, six hundred forty".