523580572849 has 4 divisors (see below), whose sum is σ = 533459451636. Its totient is φ = 513701694064.

The previous prime is 523580572843. The next prime is 523580572873. The reversal of 523580572849 is 948275085325.

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 363088194624 + 160492378225 = 602568^2 + 400615^2 .

It is a cyclic number.

It is not a de Polignac number, because 523580572849 - 2¹¹ = 523580570801 is a prime.

It is a super-3 number, since 3×523580572849³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 523580572793 and 523580572802.

It is not an unprimeable number, because it can be changed into a prime (523580572843) 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, 4939439314 + ... + 4939439419.

It is an arithmetic number, because the mean of its divisors is an integer number (133364862909).

Almost surely, 2^523580572849 is an apocalyptic number.

It is an amenable number.

523580572849 is a deficient number, since it is larger than the sum of its proper divisors (9878878787).

523580572849 is an equidigital number, since it uses as much as digits as its factorization.

523580572849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9878878786.

The product of its (nonzero) digits is 24192000, while the sum is 58.

The spelling of 523580572849 in words is "five hundred twenty-three billion, five hundred eighty million, five hundred seventy-two thousand, eight hundred forty-nine".