5390243258 has 8 divisors (see below), whose sum is σ = 8086216980. Its totient is φ = 2694837600.

The previous prime is 5390243239. The next prime is 5390243267. The reversal of 5390243258 is 8523420935.

It can be written as a sum of positive squares in 2 ways, for example, as 5357215249 + 33028009 = 73193^2 + 5747^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117443 + ... + 156758.

Almost surely, 2^5390243258 is an apocalyptic number.

5390243258 is a deficient number, since it is larger than the sum of its proper divisors (2695973722).

5390243258 is a wasteful number, since it uses less digits than its factorization.

5390243258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284032.

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 5390243258 is about 73418.2760489512. The cubic root of 5390243258 is about 1753.3533804840.

The spelling of 5390243258 in words is "five billion, three hundred ninety million, two hundred forty-three thousand, two hundred fifty-eight".