258006021349 has 8 divisors (see below), whose sum is σ = 264318447960. Its totient is φ = 251694528000.

The previous prime is 258006021341. The next prime is 258006021397. The reversal of 258006021349 is 943120600852.

It can be written as a sum of positive squares in 4 ways, for example, as 126900225 + 257879121124 = 11265^2 + 507818^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 258006021349 - 2³ = 258006021341 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 (258006021341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343597 + ... + 796285.

It is an arithmetic number, because the mean of its divisors is an integer number (33039805995).

Almost surely, 2^258006021349 is an apocalyptic number.

It is an amenable number.

258006021349 is a deficient number, since it is larger than the sum of its proper divisors (6312426611).

258006021349 is a wasteful number, since it uses less digits than its factorization.

258006021349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466631.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 258006021349 in words is "two hundred fifty-eight billion, six million, twenty-one thousand, three hundred forty-nine".