259478871 has 8 divisors (see below), whose sum is σ = 366323184. Its totient is φ = 162810240.

The previous prime is 259478851. The next prime is 259478903. The reversal of 259478871 is 178874952.

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

It is not a de Polignac number, because 259478871 - 2¹⁹ = 258954583 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 5087821 = 259478871 / (2 + 5 + 9 + 4 + 7 + 8 + 8 + 7 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259478851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2543860 + ... + 2543961.

It is an arithmetic number, because the mean of its divisors is an integer number (45790398).

Almost surely, 2^259478871 is an apocalyptic number.

259478871 is a deficient number, since it is larger than the sum of its proper divisors (106844313).

259478871 is a wasteful number, since it uses less digits than its factorization.

259478871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5087841.

The product of its digits is 1128960, while the sum is 51.

The square root of 259478871 is about 16108.3478668670. The cubic root of 259478871 is about 637.8237205552.

The spelling of 259478871 in words is "two hundred fifty-nine million, four hundred seventy-eight thousand, eight hundred seventy-one".