258728480309 has 8 divisors (see below), whose sum is σ = 278639713632. Its totient is φ = 238818538800.

The previous prime is 258728480293. The next prime is 258728480323. The reversal of 258728480309 is 903084827852.

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

It is a cyclic number.

It is not a de Polignac number, because 258728480309 - 2⁴ = 258728480293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258728480369) 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, 115034 + ... + 728484.

It is an arithmetic number, because the mean of its divisors is an integer number (34829964204).

Almost surely, 2^258728480309 is an apocalyptic number.

It is an amenable number.

258728480309 is a deficient number, since it is larger than the sum of its proper divisors (19911233323).

258728480309 is a wasteful number, since it uses less digits than its factorization.

258728480309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645907.

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 258728480309 in words is "two hundred fifty-eight billion, seven hundred twenty-eight million, four hundred eighty thousand, three hundred nine".