258347480849 has 2 divisors, whose sum is σ = 258347480850. Its totient is φ = 258347480848.

The previous prime is 258347480803. The next prime is 258347480861. The reversal of 258347480849 is 948084743852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177999610000 + 80347870849 = 421900^2 + 283457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258347480849 is a prime.

It is a super-2 number, since 2×258347480849² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 258347480791 and 258347480800.

It is not a weakly prime, because it can be changed into another prime (258347480869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129173740424 + 129173740425.

It is an arithmetic number, because the mean of its divisors is an integer number (129173740425).

Almost surely, 2^258347480849 is an apocalyptic number.

It is an amenable number.

258347480849 is a deficient number, since it is larger than the sum of its proper divisors (1).

258347480849 is an equidigital number, since it uses as much as digits as its factorization.

258347480849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61931520, while the sum is 62.

The spelling of 258347480849 in words is "two hundred fifty-eight billion, three hundred forty-seven million, four hundred eighty thousand, eight hundred forty-nine".