12617916985776 has 80 divisors (see below), whose sum is σ = 35164916381664. Its totient is φ = 3883872325632.

The previous prime is 12617916985771. The next prime is 12617916985799. The reversal of 12617916985776 is 67758961971621.

It is a junction number, because it is equal to n+sod(n) for n = 12617916985698 and 12617916985707.

It is not an unprimeable number, because it can be changed into a prime (12617916985771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145835371 + ... + 145921866.

Almost surely, 2^{12617916985776} is an apocalyptic number.

12617916985776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12617916985776 is an abundant number, since it is smaller than the sum of its proper divisors (22546999395888).

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

12617916985776 is a wasteful number, since it uses less digits than its factorization.

12617916985776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291757318 (or 291757312 counting only the distinct ones).

The product of its digits is 480090240, while the sum is 75.

The spelling of 12617916985776 in words is "twelve trillion, six hundred seventeen billion, nine hundred sixteen million, nine hundred eighty-five thousand, seven hundred seventy-six".