8385140681225 has 144 divisors (see below), whose sum is σ = 13403099289600. Its totient is φ = 5144790672000.

The previous prime is 8385140681209. The next prime is 8385140681237. The reversal of 8385140681225 is 5221860415838.

It is a happy number.

It is not a de Polignac number, because 8385140681225 - 2⁴ = 8385140681209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 592205696 + ... + 592219854.

It is an arithmetic number, because the mean of its divisors is an integer number (93077078400).

Almost surely, 2^{8385140681225} is an apocalyptic number.

It is an amenable number.

8385140681225 is a deficient number, since it is larger than the sum of its proper divisors (5017958608375).

8385140681225 is a wasteful number, since it uses less digits than its factorization.

8385140681225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14884 (or 14872 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 53.

The spelling of 8385140681225 in words is "eight trillion, three hundred eighty-five billion, one hundred forty million, six hundred eighty-one thousand, two hundred twenty-five".