12695436148 has 6 divisors (see below), whose sum is σ = 22217013266. Its totient is φ = 6347718072.

The previous prime is 12695436139. The next prime is 12695436151. The reversal of 12695436148 is 84163459621.

It can be written as a sum of positive squares in only one way, i.e., 7849605604 + 4845830544 = 88598^2 + 69612^2 .

It is a super-2 number, since 2×12695436148² (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 as a sum of consecutive naturals, namely, 1586929515 + ... + 1586929522.

Almost surely, 2^12695436148 is an apocalyptic number.

It is an amenable number.

12695436148 is a deficient number, since it is larger than the sum of its proper divisors (9521577118).

12695436148 is a wasteful number, since it uses less digits than its factorization.

12695436148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3173859041 (or 3173859039 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 49.

The spelling of 12695436148 in words is "twelve billion, six hundred ninety-five million, four hundred thirty-six thousand, one hundred forty-eight".