12480842640 has 160 divisors (see below), whose sum is σ = 44294307840. Its totient is φ = 2847831552.

The previous prime is 12480842639. The next prime is 12480842651. The reversal of 12480842640 is 4624808421.

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, 1013641 + ... + 1025879.

It is an arithmetic number, because the mean of its divisors is an integer number (276839424).

Almost surely, 2^12480842640 is an apocalyptic number.

12480842640 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 12480842640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22147153920).

12480842640 is an abundant number, since it is smaller than the sum of its proper divisors (31813465200).

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

12480842640 is a wasteful number, since it uses less digits than its factorization.

12480842640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12869 (or 12863 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 39.

The spelling of 12480842640 in words is "twelve billion, four hundred eighty million, eight hundred forty-two thousand, six hundred forty".