12589523764 has 24 divisors (see below), whose sum is σ = 22182680520. Its totient is φ = 6251728896.

The previous prime is 12589523759. The next prime is 12589523809. The reversal of 12589523764 is 46732598521.

It can be written as a sum of positive squares in 4 ways, for example, as 6643880100 + 5945643664 = 81510^2 + 77108^2 .

It is a super-2 number, since 2×12589523764² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440832 + ... + 468520.

It is an arithmetic number, because the mean of its divisors is an integer number (924278355).

Almost surely, 2^12589523764 is an apocalyptic number.

It is an amenable number.

12589523764 is a deficient number, since it is larger than the sum of its proper divisors (9593156756).

12589523764 is a wasteful number, since it uses less digits than its factorization.

12589523764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28467 (or 28465 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 52.

The spelling of 12589523764 in words is "twelve billion, five hundred eighty-nine million, five hundred twenty-three thousand, seven hundred sixty-four".