259641726980 has 24 divisors (see below), whose sum is σ = 562836261120. Its totient is φ = 100506474720.

The previous prime is 259641726979. The next prime is 259641727013. The reversal of 259641726980 is 89627146952.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209387870 + ... + 209389109.

It is an arithmetic number, because the mean of its divisors is an integer number (23451510880).

Almost surely, 2^259641726980 is an apocalyptic number.

259641726980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

259641726980 is an abundant number, since it is smaller than the sum of its proper divisors (303194534140).

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

259641726980 is a wasteful number, since it uses less digits than its factorization.

259641726980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418777019 (or 418777017 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 59.

The spelling of 259641726980 in words is "two hundred fifty-nine billion, six hundred forty-one million, seven hundred twenty-six thousand, nine hundred eighty".