255863759028 has 24 divisors (see below), whose sum is σ = 597234281280. Its totient is φ = 85256656320.

The previous prime is 255863758991. The next prime is 255863759029. The reversal of 255863759028 is 820957368552.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255863759029) 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, 3873808 + ... + 3939303.

It is an arithmetic number, because the mean of its divisors is an integer number (24884761720).

Almost surely, 2^255863759028 is an apocalyptic number.

It is an amenable number.

255863759028 is an abundant number, since it is smaller than the sum of its proper divisors (341370522252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255863759028 is a wasteful number, since it uses less digits than its factorization.

255863759028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7815847 (or 7815845 counting only the distinct ones).

The product of its (nonzero) digits is 36288000, while the sum is 60.

The spelling of 255863759028 in words is "two hundred fifty-five billion, eight hundred sixty-three million, seven hundred fifty-nine thousand, twenty-eight".