12439952880 has 80 divisors (see below), whose sum is σ = 38575864320. Its totient is φ = 3316287744.

The previous prime is 12439952879. The next prime is 12439952887. The reversal of 12439952880 is 8825993421.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12439952887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1055661 + ... + 1067379.

It is an arithmetic number, because the mean of its divisors is an integer number (482198304).

Almost surely, 2^12439952880 is an apocalyptic number.

12439952880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12439952880 is an abundant number, since it is smaller than the sum of its proper divisors (26135911440).

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

12439952880 is a wasteful number, since it uses less digits than its factorization.

12439952880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16158 (or 16152 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 12439952880 in words is "twelve billion, four hundred thirty-nine million, nine hundred fifty-two thousand, eight hundred eighty".