12642323880 has 64 divisors (see below), whose sum is σ = 37992911040. Its totient is φ = 3365425152.

The previous prime is 12642323879. The next prime is 12642323891. The reversal of 12642323880 is 8832324621.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22054 + ... + 160533.

It is an arithmetic number, because the mean of its divisors is an integer number (593639235).

Almost surely, 2^12642323880 is an apocalyptic number.

12642323880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12642323880 is an abundant number, since it is smaller than the sum of its proper divisors (25350587160).

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

12642323880 is a wasteful number, since it uses less digits than its factorization.

12642323880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183178 (or 183174 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 12642323880 in words is "twelve billion, six hundred forty-two million, three hundred twenty-three thousand, eight hundred eighty".