255709782407 has 8 divisors (see below), whose sum is σ = 256267023072. Its totient is φ = 255153024000.

The previous prime is 255709782379. The next prime is 255709782479. The reversal of 255709782407 is 704287907552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255709782407 - 2³⁰ = 254636040583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255709782907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 951407 + ... + 1190207.

It is an arithmetic number, because the mean of its divisors is an integer number (32033377884).

Almost surely, 2^255709782407 is an apocalyptic number.

255709782407 is a deficient number, since it is larger than the sum of its proper divisors (557240665).

255709782407 is a wasteful number, since it uses less digits than its factorization.

255709782407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241129.

The product of its (nonzero) digits is 9878400, while the sum is 56.

The spelling of 255709782407 in words is "two hundred fifty-five billion, seven hundred nine million, seven hundred eighty-two thousand, four hundred seven".