255493788379 has 4 divisors (see below), whose sum is σ = 263735523520. Its totient is φ = 247252053240.

The previous prime is 255493788377. The next prime is 255493788383. The reversal of 255493788379 is 973887394552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255493788379 - 2¹ = 255493788377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255493788377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4120867524 + ... + 4120867585.

It is an arithmetic number, because the mean of its divisors is an integer number (65933880880).

Almost surely, 2^255493788379 is an apocalyptic number.

255493788379 is a deficient number, since it is larger than the sum of its proper divisors (8241735141).

255493788379 is an equidigital number, since it uses as much as digits as its factorization.

255493788379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8241735140.

The product of its digits is 457228800, while the sum is 70.

The spelling of 255493788379 in words is "two hundred fifty-five billion, four hundred ninety-three million, seven hundred eighty-eight thousand, three hundred seventy-nine".