8601855778325 has 24 divisors (see below), whose sum is σ = 10803242744640. Its totient is φ = 6793380316800.

The previous prime is 8601855778267. The next prime is 8601855778343. The reversal of 8601855778325 is 5238775581068.

It is not a de Polignac number, because 8601855778325 - 2¹² = 8601855774229 is a prime.

It is a super-2 number, since 2×8601855778325² (a number of 27 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 in 23 ways as a sum of consecutive naturals, for example, 1659419 + ... + 4467368.

It is an arithmetic number, because the mean of its divisors is an integer number (450135114360).

Almost surely, 2^{8601855778325} is an apocalyptic number.

It is an amenable number.

8601855778325 is a deficient number, since it is larger than the sum of its proper divisors (2201386966315).

8601855778325 is a wasteful number, since it uses less digits than its factorization.

8601855778325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6127517 (or 6127512 counting only the distinct ones).

The product of its (nonzero) digits is 112896000, while the sum is 65.

The spelling of 8601855778325 in words is "eight trillion, six hundred one billion, eight hundred fifty-five million, seven hundred seventy-eight thousand, three hundred twenty-five".