581800012 has 12 divisors (see below), whose sum is σ = 1018553200. Its totient is φ = 290784816.

The previous prime is 581799991. The next prime is 581800013. The reversal of 581800012 is 210008185.

It is a self number, because there is not a number n which added to its sum of digits gives 581800012.

It is not an unprimeable number, because it can be changed into a prime (581800013) 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, 16887 + ... + 38062.

Almost surely, 2^581800012 is an apocalyptic number.

It is an amenable number.

581800012 is a deficient number, since it is larger than the sum of its proper divisors (436753188).

581800012 is a wasteful number, since it uses less digits than its factorization.

581800012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57600 (or 57598 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 581800012 is about 24120.5309228466. The cubic root of 581800012 is about 834.8169185182.

Adding to 581800012 its reverse (210008185), we get a palindrome (791808197).

The spelling of 581800012 in words is "five hundred eighty-one million, eight hundred thousand, twelve".