255849493938 has 16 divisors (see below), whose sum is σ = 522586200960. Its totient is φ = 83468629136.

The previous prime is 255849493937. The next prime is 255849493967. The reversal of 255849493938 is 839394948552.

It is not an unprimeable number, because it can be changed into a prime (255849493937) 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, 453633573 + ... + 453634136.

It is an arithmetic number, because the mean of its divisors is an integer number (32661637560).

Almost surely, 2^255849493938 is an apocalyptic number.

255849493938 is an abundant number, since it is smaller than the sum of its proper divisors (266736707022).

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

255849493938 is a wasteful number, since it uses less digits than its factorization.

255849493938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907267761.

The product of its digits is 335923200, while the sum is 69.

The spelling of 255849493938 in words is "two hundred fifty-five billion, eight hundred forty-nine million, four hundred ninety-three thousand, nine hundred thirty-eight".