581878071 has 12 divisors (see below), whose sum is σ = 849156672. Its totient is φ = 383918976.

The previous prime is 581878067. The next prime is 581878093. The reversal of 581878071 is 170878185.

581878071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 581878071 - 2² = 581878067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (581878051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 332391 + ... + 334136.

It is an arithmetic number, because the mean of its divisors is an integer number (70763056).

Almost surely, 2^581878071 is an apocalyptic number.

581878071 is a deficient number, since it is larger than the sum of its proper divisors (267278601).

581878071 is a wasteful number, since it uses less digits than its factorization.

581878071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666630 (or 666627 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 45.

The square root of 581878071 is about 24122.1489714329. The cubic root of 581878071 is about 834.8542521141.

The spelling of 581878071 in words is "five hundred eighty-one million, eight hundred seventy-eight thousand, seventy-one".