581038606340 has 12 divisors (see below), whose sum is σ = 1220181073356. Its totient is φ = 232415442528.

The previous prime is 581038606331. The next prime is 581038606349. The reversal of 581038606340 is 43606830185.

It is an interprime number because it is at equal distance from previous prime (581038606331) and next prime (581038606349).

It can be written as a sum of positive squares in 2 ways, for example, as 236882730436 + 344155875904 = 486706^2 + 586648^2 .

It is a junction number, because it is equal to n+sod(n) for n = 581038606291 and 581038606300.

It is not an unprimeable number, because it can be changed into a prime (581038606349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14525965139 + ... + 14525965178.

It is an arithmetic number, because the mean of its divisors is an integer number (101681756113).

Almost surely, 2^581038606340 is an apocalyptic number.

It is an amenable number.

581038606340 is an abundant number, since it is smaller than the sum of its proper divisors (639142467016).

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

581038606340 is a wasteful number, since it uses less digits than its factorization.

581038606340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29051930326 (or 29051930324 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 581038606340 in words is "five hundred eighty-one billion, thirty-eight million, six hundred six thousand, three hundred forty".