12530579075 has 24 divisors (see below), whose sum is σ = 17982420480. Its totient is φ = 8483623200.

The previous prime is 12530579051. The next prime is 12530579081. The reversal of 12530579075 is 57097503521.

It is a de Polignac number, because none of the positive numbers 2^k-12530579075 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 439361 + ... + 467010.

It is an arithmetic number, because the mean of its divisors is an integer number (749267520).

Almost surely, 2^12530579075 is an apocalyptic number.

12530579075 is a deficient number, since it is larger than the sum of its proper divisors (5451841405).

12530579075 is an equidigital number, since it uses as much as digits as its factorization.

12530579075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906467 (or 906462 counting only the distinct ones).

The product of its (nonzero) digits is 330750, while the sum is 44.

The spelling of 12530579075 in words is "twelve billion, five hundred thirty million, five hundred seventy-nine thousand, seventy-five".