259285443881 has 4 divisors (see below), whose sum is σ = 259286706000. Its totient is φ = 259284181764.

The previous prime is 259285443869. The next prime is 259285443889. The reversal of 259285443881 is 188344582952.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 259285443881 - 2³⁰ = 258211702057 is a prime.

It is a super-2 number, since 2×259285443881² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 259285443881.

It is not an unprimeable number, because it can be changed into a prime (259285443889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243611 + ... + 760208.

It is an arithmetic number, because the mean of its divisors is an integer number (64821676500).

Almost surely, 2^259285443881 is an apocalyptic number.

It is an amenable number.

259285443881 is a deficient number, since it is larger than the sum of its proper divisors (1262119).

259285443881 is a wasteful number, since it uses less digits than its factorization.

259285443881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262118.

The product of its digits is 22118400, while the sum is 59.

The spelling of 259285443881 in words is "two hundred fifty-nine billion, two hundred eighty-five million, four hundred forty-three thousand, eight hundred eighty-one".