258017428219 has 12 divisors (see below), whose sum is σ = 270066482056. Its totient is φ = 246485286432.

The previous prime is 258017428199. The next prime is 258017428237. The reversal of 258017428219 is 912824710852.

It is a happy number.

It is not a de Polignac number, because 258017428219 - 2⁵ = 258017428187 is a prime.

It is a super-2 number, since 2×258017428219² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258017428289) 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, 106447 + ... + 726199.

Almost surely, 2^258017428219 is an apocalyptic number.

258017428219 is a deficient number, since it is larger than the sum of its proper divisors (12049053837).

258017428219 is an equidigital number, since it uses as much as digits as its factorization.

258017428219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620586 (or 620563 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 258017428219 in words is "two hundred fifty-eight billion, seventeen million, four hundred twenty-eight thousand, two hundred nineteen".