581433390572 has 6 divisors (see below), whose sum is σ = 1017508433508. Its totient is φ = 290716695284.

The previous prime is 581433390553. The next prime is 581433390589. The reversal of 581433390572 is 275093334185.

It is a self number, because there is not a number n which added to its sum of digits gives 581433390572.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72679173818 + ... + 72679173825.

It is an arithmetic number, because the mean of its divisors is an integer number (169584738918).

Almost surely, 2^581433390572 is an apocalyptic number.

It is an amenable number.

581433390572 is a deficient number, since it is larger than the sum of its proper divisors (436075042936).

581433390572 is a wasteful number, since it uses less digits than its factorization.

581433390572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145358347647 (or 145358347645 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 581433390572 in words is "five hundred eighty-one billion, four hundred thirty-three million, three hundred ninety thousand, five hundred seventy-two".