581334062442 has 56 divisors (see below), whose sum is σ = 1356446145696. Its totient is φ = 166095446412.

The previous prime is 581334062303. The next prime is 581334062521. The reversal of 581334062442 is 244260433185.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nialpdrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 581334062394 and 581334062403.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 83047723203 + ... + 83047723209.

Almost surely, 2^581334062442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 581334062442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (678223072848).

581334062442 is an abundant number, since it is smaller than the sum of its proper divisors (775112083254).

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

581334062442 is an frugal number, since it uses more digits than its factorization.

581334062442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 12 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

Multiplying 581334062442 by its sum of digits (42), we get a square (24416030622564 = 4941258²).

581334062442 divided by its sum of digits (42) gives a 12-th power (13841287201 = 7¹²).

The spelling of 581334062442 in words is "five hundred eighty-one billion, three hundred thirty-four million, sixty-two thousand, four hundred forty-two".