259906420434 has 64 divisors (see below), whose sum is σ = 553414988160. Its totient is φ = 81142871040.

The previous prime is 259906420391. The next prime is 259906420447. The reversal of 259906420434 is 434024609952.

259906420434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5088744 + ... + 5139564.

It is an arithmetic number, because the mean of its divisors is an integer number (8647109190).

Almost surely, 2^259906420434 is an apocalyptic number.

259906420434 is an abundant number, since it is smaller than the sum of its proper divisors (293508567726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

259906420434 is a wasteful number, since it uses less digits than its factorization.

259906420434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51355.

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 259906420434 in words is "two hundred fifty-nine billion, nine hundred six million, four hundred twenty thousand, four hundred thirty-four".