17312678136 has 96 divisors (see below), whose sum is σ = 50553462960. Its totient is φ = 5320843776.

The previous prime is 17312678113. The next prime is 17312678137. The reversal of 17312678136 is 63187621371.

It is a junction number, because it is equal to n+sod(n) for n = 17312678091 and 17312678100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17312678137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 838756 + ... + 859148.

Almost surely, 2^17312678136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17312678136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25276731480).

17312678136 is an abundant number, since it is smaller than the sum of its proper divisors (33240784824).

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

17312678136 is a wasteful number, since it uses less digits than its factorization.

17312678136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21325 (or 21318 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The spelling of 17312678136 in words is "seventeen billion, three hundred twelve million, six hundred seventy-eight thousand, one hundred thirty-six".