259934220287 has 4 divisors (see below), whose sum is σ = 297067680336. Its totient is φ = 222800760240.

The previous prime is 259934220283. The next prime is 259934220311. The reversal of 259934220287 is 782022439952.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 259934220287 - 2² = 259934220283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259934220283) 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, 18566730014 + ... + 18566730027.

It is an arithmetic number, because the mean of its divisors is an integer number (74266920084).

Almost surely, 2^259934220287 is an apocalyptic number.

259934220287 is a deficient number, since it is larger than the sum of its proper divisors (37133460049).

259934220287 is an equidigital number, since it uses as much as digits as its factorization.

259934220287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37133460048.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 259934220287 in words is "two hundred fifty-nine billion, nine hundred thirty-four million, two hundred twenty thousand, two hundred eighty-seven".