12256703648 has 48 divisors (see below), whose sum is σ = 28029705984. Its totient is φ = 5166754560.

The previous prime is 12256703623. The next prime is 12256703677. The reversal of 12256703648 is 84630765221.

It is a junction number, because it is equal to n+sod(n) for n = 12256703599 and 12256703608.

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, 434840 + ... + 462167.

It is an arithmetic number, because the mean of its divisors is an integer number (583952208).

Almost surely, 2^12256703648 is an apocalyptic number.

It is an amenable number.

12256703648 is an abundant number, since it is smaller than the sum of its proper divisors (15773002336).

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

12256703648 is an equidigital number, since it uses as much as digits as its factorization.

12256703648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897085 (or 897077 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 12256703648 in words is "twelve billion, two hundred fifty-six million, seven hundred three thousand, six hundred forty-eight".