259728357441 has 32 divisors (see below), whose sum is σ = 432575520768. Its totient is φ = 135179838720.

The previous prime is 259728357401. The next prime is 259728357457. The reversal of 259728357441 is 144753827952.

It is not a de Polignac number, because 259728357441 - 2⁷ = 259728357313 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (259728357401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11723295 + ... + 11745428.

It is an arithmetic number, because the mean of its divisors is an integer number (13517985024).

Almost surely, 2^259728357441 is an apocalyptic number.

259728357441 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

259728357441 is a deficient number, since it is larger than the sum of its proper divisors (172847163327).

259728357441 is a wasteful number, since it uses less digits than its factorization.

259728357441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23468781.

The product of its digits is 16934400, while the sum is 57.

The spelling of 259728357441 in words is "two hundred fifty-nine billion, seven hundred twenty-eight million, three hundred fifty-seven thousand, four hundred forty-one".