259990945828 has 12 divisors (see below), whose sum is σ = 455057618652. Its totient is φ = 129974483360.

The previous prime is 259990945769. The next prime is 259990945831. The reversal of 259990945828 is 828549099952.

It can be written as a sum of positive squares in 2 ways, for example, as 172198441024 + 87792504804 = 414968^2 + 296298^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5219503 + ... + 5269078.

It is an arithmetic number, because the mean of its divisors is an integer number (37921468221).

Almost surely, 2^259990945828 is an apocalyptic number.

It is an amenable number.

259990945828 is a deficient number, since it is larger than the sum of its proper divisors (195066672824).

259990945828 is a wasteful number, since it uses less digits than its factorization.

259990945828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10494782 (or 10494780 counting only the distinct ones).

The product of its (nonzero) digits is 167961600, while the sum is 70.

The spelling of 259990945828 in words is "two hundred fifty-nine billion, nine hundred ninety million, nine hundred forty-five thousand, eight hundred twenty-eight".