255376434643 has 8 divisors (see below), whose sum is σ = 280596738240. Its totient is φ = 230490175080.

The previous prime is 255376434641. The next prime is 255376434671. The reversal of 255376434643 is 346434673552.

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

It is not a de Polignac number, because 255376434643 - 2¹ = 255376434641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255376434641) 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, 83509405 + ... + 83512462.

It is an arithmetic number, because the mean of its divisors is an integer number (35074592280).

Almost surely, 2^255376434643 is an apocalyptic number.

255376434643 is a deficient number, since it is larger than the sum of its proper divisors (25220303597).

255376434643 is a wasteful number, since it uses less digits than its factorization.

255376434643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167022017.

The product of its digits is 21772800, while the sum is 52.

The spelling of 255376434643 in words is "two hundred fifty-five billion, three hundred seventy-six million, four hundred thirty-four thousand, six hundred forty-three".