785143968255 has 24 divisors (see below), whose sum is σ = 1361251977072. Its totient is φ = 418640137344.

The previous prime is 785143968247. The next prime is 785143968277. The reversal of 785143968255 is 552869341587.

785143968255 is a `hidden beast` number, since 7 + 8 + 514 + 3 + 9 + 68 + 2 + 55 = 666.

It is not a de Polignac number, because 785143968255 - 2³ = 785143968247 is a prime.

It is a super-3 number, since 3×785143968255³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 785143968192 and 785143968201.

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, 1967749 + ... + 2332878.

It is an arithmetic number, because the mean of its divisors is an integer number (56718832378).

Almost surely, 2^785143968255 is an apocalyptic number.

785143968255 is a deficient number, since it is larger than the sum of its proper divisors (576108008817).

785143968255 is a wasteful number, since it uses less digits than its factorization.

785143968255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304695 (or 4304692 counting only the distinct ones).

The product of its digits is 72576000, while the sum is 63.

The spelling of 785143968255 in words is "seven hundred eighty-five billion, one hundred forty-three million, nine hundred sixty-eight thousand, two hundred fifty-five".