581012490204 has 144 divisors (see below), whose sum is σ = 1499918923776. Its totient is φ = 189590544000.

The previous prime is 581012490197. The next prime is 581012490229. The reversal of 581012490204 is 402094210185.

581012490204 is a `hidden beast` number, since 581 + 0 + 12 + 49 + 0 + 20 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 297801429 + ... + 297803379.

Almost surely, 2^581012490204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 581012490204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (749959461888).

581012490204 is an abundant number, since it is smaller than the sum of its proper divisors (918906433572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

581012490204 is a wasteful number, since it uses less digits than its factorization.

581012490204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736 (or 2731 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 581012490204 in words is "five hundred eighty-one billion, twelve million, four hundred ninety thousand, two hundred four".