258251041609 has 12 divisors (see below), whose sum is σ = 284666905908. Its totient is φ = 234108554240.

The previous prime is 258251041603. The next prime is 258251041627. The reversal of 258251041609 is 906140152852.

It can be written as a sum of positive squares in 2 ways, for example, as 169911313209 + 88339728400 = 412203^2 + 297220^2 .

It is not a de Polignac number, because 258251041609 - 2⁷ = 258251041481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (258251041603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2980384 + ... + 3065809.

It is an arithmetic number, because the mean of its divisors is an integer number (23722242159).

Almost surely, 2^258251041609 is an apocalyptic number.

It is an amenable number.

258251041609 is a deficient number, since it is larger than the sum of its proper divisors (26415864299).

258251041609 is a wasteful number, since it uses less digits than its factorization.

258251041609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6046568 (or 6046557 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 258251041609 in words is "two hundred fifty-eight billion, two hundred fifty-one million, forty-one thousand, six hundred nine".