12530771574 has 16 divisors (see below), whose sum is σ = 25738882608. Its totient is φ = 4064033952.

The previous prime is 12530771557. The next prime is 12530771639. The reversal of 12530771574 is 47517703521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28222237 + ... + 28222680.

It is an arithmetic number, because the mean of its divisors is an integer number (1608680163).

Almost surely, 2^12530771574 is an apocalyptic number.

12530771574 is an abundant number, since it is smaller than the sum of its proper divisors (13208111034).

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

12530771574 is a wasteful number, since it uses less digits than its factorization.

12530771574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56444959.

The product of its (nonzero) digits is 205800, while the sum is 42.

The spelling of 12530771574 in words is "twelve billion, five hundred thirty million, seven hundred seventy-one thousand, five hundred seventy-four".