12507744579 has 8 divisors (see below), whose sum is σ = 18193083072. Its totient is φ = 7580451240.

The previous prime is 12507744551. The next prime is 12507744649. The reversal of 12507744579 is 97544770521.

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

It is not a de Polignac number, because 12507744579 - 2¹³ = 12507736387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12507744079) 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, 189511249 + ... + 189511314.

It is an arithmetic number, because the mean of its divisors is an integer number (2274135384).

Almost surely, 2^12507744579 is an apocalyptic number.

12507744579 is a deficient number, since it is larger than the sum of its proper divisors (5685338493).

12507744579 is a wasteful number, since it uses less digits than its factorization.

12507744579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379022577.

The product of its (nonzero) digits is 2469600, while the sum is 51.

The spelling of 12507744579 in words is "twelve billion, five hundred seven million, seven hundred forty-four thousand, five hundred seventy-nine".