12479733321 has 8 divisors (see below), whose sum is σ = 18152339424. Its totient is φ = 7563474720.

The previous prime is 12479733319. The next prime is 12479733377. The reversal of 12479733321 is 12333797421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12479733321 - 2¹ = 12479733319 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12479734321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189086836 + ... + 189086901.

It is an arithmetic number, because the mean of its divisors is an integer number (2269042428).

Almost surely, 2^12479733321 is an apocalyptic number.

12479733321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12479733321 is a deficient number, since it is larger than the sum of its proper divisors (5672606103).

12479733321 is a wasteful number, since it uses less digits than its factorization.

12479733321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378173751.

The product of its digits is 190512, while the sum is 42.

The spelling of 12479733321 in words is "twelve billion, four hundred seventy-nine million, seven hundred thirty-three thousand, three hundred twenty-one".