7665878255 has 48 divisors (see below), whose sum is σ = 11396972160. Its totient is φ = 4918330368.

The previous prime is 7665878239. The next prime is 7665878267. The reversal of 7665878255 is 5528785667.

It is not a de Polignac number, because 7665878255 - 2⁴ = 7665878239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7665878194 and 7665878203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 715226 + ... + 725864.

It is an arithmetic number, because the mean of its divisors is an integer number (237436920).

Almost surely, 2^7665878255 is an apocalyptic number.

7665878255 is a deficient number, since it is larger than the sum of its proper divisors (3731093905).

7665878255 is a wasteful number, since it uses less digits than its factorization.

7665878255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10848 (or 10841 counting only the distinct ones).

The product of its digits is 28224000, while the sum is 59.

The square root of 7665878255 is about 87555.0013134601. The cubic root of 7665878255 is about 1971.7596391080.

The spelling of 7665878255 in words is "seven billion, six hundred sixty-five million, eight hundred seventy-eight thousand, two hundred fifty-five".