768817120855225 has 24 divisors (see below), whose sum is σ = 1032402122660160. Its totient is φ = 564570131507520.

The previous prime is 768817120855219. The next prime is 768817120855279. The reversal of 768817120855225 is 522558021718867.

It is not a de Polignac number, because 768817120855225 - 2⁵ = 768817120855193 is a prime.

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, 6607738309 + ... + 6607854658.

It is an arithmetic number, because the mean of its divisors is an integer number (43016755110840).

Almost surely, 2^{768817120855225} is an apocalyptic number.

It is an amenable number.

768817120855225 is a deficient number, since it is larger than the sum of its proper divisors (263585001804935).

768817120855225 is a wasteful number, since it uses less digits than its factorization.

768817120855225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13215593169 (or 13215593164 counting only the distinct ones).

The product of its (nonzero) digits is 150528000, while the sum is 67.

The spelling of 768817120855225 in words is "seven hundred sixty-eight trillion, eight hundred seventeen billion, one hundred twenty million, eight hundred fifty-five thousand, two hundred twenty-five".