12438658960 has 80 divisors (see below), whose sum is σ = 35593721856. Its totient is φ = 3936628224.

The previous prime is 12438658951. The next prime is 12438659021. The reversal of 12438658960 is 6985683421.

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

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 12438658898 and 12438658907.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 847024 + ... + 861583.

Almost surely, 2^12438658960 is an apocalyptic number.

12438658960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12438658960 is an abundant number, since it is smaller than the sum of its proper divisors (23155062896).

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

12438658960 is a wasteful number, since it uses less digits than its factorization.

12438658960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708640 (or 1708634 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 12438658960 in words is "twelve billion, four hundred thirty-eight million, six hundred fifty-eight thousand, nine hundred sixty".