258541183261 has 4 divisors (see below), whose sum is σ = 258542904672. Its totient is φ = 258539461852.

The previous prime is 258541183237. The next prime is 258541183273. The reversal of 258541183261 is 162381145852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 258541183261 - 2⁷ = 258541183133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258241183261) 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, 611335 + ... + 943828.

It is an arithmetic number, because the mean of its divisors is an integer number (64635726168).

Almost surely, 2^258541183261 is an apocalyptic number.

It is an amenable number.

258541183261 is a deficient number, since it is larger than the sum of its proper divisors (1721411).

258541183261 is a wasteful number, since it uses less digits than its factorization.

258541183261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721410.

The product of its digits is 460800, while the sum is 46.

The spelling of 258541183261 in words is "two hundred fifty-eight billion, five hundred forty-one million, one hundred eighty-three thousand, two hundred sixty-one".