855318782068125 has 40 divisors (see below), whose sum is σ = 1425271799529600. Its totient is φ = 456107063808000.

The previous prime is 855318782068117. The next prime is 855318782068147. The reversal of 855318782068125 is 521860287813558.

It is not a de Polignac number, because 855318782068125 - 2³ = 855318782068117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 855318782068125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17884900 + ... + 45061149.

It is an arithmetic number, because the mean of its divisors is an integer number (35631794988240).

Almost surely, 2^{855318782068125} is an apocalyptic number.

It is an amenable number.

855318782068125 is a deficient number, since it is larger than the sum of its proper divisors (569953017461475).

855318782068125 is an equidigital number, since it uses as much as digits as its factorization.

855318782068125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62953319 (or 62953304 counting only the distinct ones).

The product of its (nonzero) digits is 258048000, while the sum is 69.

The spelling of 855318782068125 in words is "eight hundred fifty-five trillion, three hundred eighteen billion, seven hundred eighty-two million, sixty-eight thousand, one hundred twenty-five".