12328679979 has 128 divisors (see below), whose sum is σ = 23681064960. Its totient is φ = 6153148800.

The previous prime is 12328679963. The next prime is 12328680011. The reversal of 12328679979 is 97997682321.

It is not a de Polignac number, because 12328679979 - 2⁴ = 12328679963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (12328679579) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6383644 + ... + 6385574.

It is an arithmetic number, because the mean of its divisors is an integer number (185008320).

Almost surely, 2^12328679979 is an apocalyptic number.

12328679979 is a deficient number, since it is larger than the sum of its proper divisors (11352384981).

12328679979 is a wasteful number, since it uses less digits than its factorization.

12328679979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078 (or 2072 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 63.

The spelling of 12328679979 in words is "twelve billion, three hundred twenty-eight million, six hundred seventy-nine thousand, nine hundred seventy-nine".