230689568657258 has 4 divisors (see below), whose sum is σ = 346034352985890. Its totient is φ = 115344784328628.

The previous prime is 230689568657257. The next prime is 230689568657267. The reversal of 230689568657258 is 852756865986032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 217242041591689 + 13447527065569 = 14739133^2 + 3667087^2 .

It is not an unprimeable number, because it can be changed into a prime (230689568657257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57672392164313 + ... + 57672392164316.

Almost surely, 2^{230689568657258} is an apocalyptic number.

230689568657258 is a deficient number, since it is larger than the sum of its proper divisors (115344784328632).

230689568657258 is a wasteful number, since it uses less digits than its factorization.

230689568657258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115344784328631.

The product of its (nonzero) digits is 10450944000, while the sum is 80.

The spelling of 230689568657258 in words is "two hundred thirty trillion, six hundred eighty-nine billion, five hundred sixty-eight million, six hundred fifty-seven thousand, two hundred fifty-eight".