12479494272 has 128 divisors (see below), whose sum is σ = 39878246400. Its totient is φ = 3377894400.

The previous prime is 12479494267. The next prime is 12479494289. The reversal of 12479494272 is 27249497421.

It is a tau number, because it is divible by the number of its divisors (128).

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, 71104 + ... + 173247.

It is an arithmetic number, because the mean of its divisors is an integer number (311548800).

Almost surely, 2^12479494272 is an apocalyptic number.

12479494272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12479494272 is an abundant number, since it is smaller than the sum of its proper divisors (27398752128).

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

12479494272 is a wasteful number, since it uses less digits than its factorization.

12479494272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244394 (or 244382 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 51.

The spelling of 12479494272 in words is "twelve billion, four hundred seventy-nine million, four hundred ninety-four thousand, two hundred seventy-two".