230520769489 has 4 divisors (see below), whose sum is σ = 230605741156. Its totient is φ = 230435797824.

The previous prime is 230520769477. The next prime is 230520769517. The reversal of 230520769489 is 984967025032.

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

It can be written as a sum of positive squares in 2 ways, for example, as 127026662464 + 103494107025 = 356408^2 + 321705^2 .

It is a cyclic number.

It is not a de Polignac number, because 230520769489 - 2¹⁷ = 230520638417 is a prime.

It is a super-2 number, since 2×230520769489² (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 (230520769439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42481764 + ... + 42487189.

It is an arithmetic number, because the mean of its divisors is an integer number (57651435289).

Almost surely, 2^230520769489 is an apocalyptic number.

It is an amenable number.

230520769489 is a deficient number, since it is larger than the sum of its proper divisors (84971667).

230520769489 is an equidigital number, since it uses as much as digits as its factorization.

230520769489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84971666.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 230520769489 in words is "two hundred thirty billion, five hundred twenty million, seven hundred sixty-nine thousand, four hundred eighty-nine".