13135642612 has 12 divisors (see below), whose sum is σ = 23224358500. Its totient is φ = 6500111616.

The previous prime is 13135642561. The next prime is 13135642643. The reversal of 13135642612 is 21624653131.

It can be written as a sum of positive squares in 2 ways, for example, as 10841807376 + 2293835236 = 104124^2 + 47894^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16926987 + ... + 16927762.

Almost surely, 2^13135642612 is an apocalyptic number.

It is an amenable number.

13135642612 is a deficient number, since it is larger than the sum of its proper divisors (10088715888).

13135642612 is a wasteful number, since it uses less digits than its factorization.

13135642612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33854850 (or 33854848 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The spelling of 13135642612 in words is "thirteen billion, one hundred thirty-five million, six hundred forty-two thousand, six hundred twelve".