255749623319 has 16 divisors (see below), whose sum is σ = 268053467136. Its totient is φ = 243702280800.

The previous prime is 255749623301. The next prime is 255749623369. The reversal of 255749623319 is 913326947552.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255749623319 is a prime.

It is a super-2 number, since 2×255749623319² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255749623369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5119874 + ... + 5169584.

It is an arithmetic number, because the mean of its divisors is an integer number (16753341696).

Almost surely, 2^255749623319 is an apocalyptic number.

255749623319 is a deficient number, since it is larger than the sum of its proper divisors (12303843817).

255749623319 is a wasteful number, since it uses less digits than its factorization.

255749623319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52286.

The product of its digits is 12247200, while the sum is 56.

The spelling of 255749623319 in words is "two hundred fifty-five billion, seven hundred forty-nine million, six hundred twenty-three thousand, three hundred nineteen".