12576638036 has 6 divisors (see below), whose sum is σ = 22009116570. Its totient is φ = 6288319016.

The previous prime is 12576637999. The next prime is 12576638051. The reversal of 12576638036 is 63083667521.

It can be written as a sum of positive squares in only one way, i.e., 11633779600 + 942858436 = 107860^2 + 30706^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572079751 + ... + 1572079758.

It is an arithmetic number, because the mean of its divisors is an integer number (3668186095).

Almost surely, 2^12576638036 is an apocalyptic number.

It is an amenable number.

12576638036 is a deficient number, since it is larger than the sum of its proper divisors (9432478534).

12576638036 is a wasteful number, since it uses less digits than its factorization.

12576638036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3144159513 (or 3144159511 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 12576638036 in words is "twelve billion, five hundred seventy-six million, six hundred thirty-eight thousand, thirty-six".