571481064939 has 4 divisors (see below), whose sum is σ = 761974753256. Its totient is φ = 380987376624.

The previous prime is 571481064923. The next prime is 571481065039. The reversal of 571481064939 is 939460184175.

It is a happy number.

571481064939 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 571481064939 - 2⁴ = 571481064923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (571481064439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95246844154 + ... + 95246844159.

It is an arithmetic number, because the mean of its divisors is an integer number (190493688314).

Almost surely, 2^571481064939 is an apocalyptic number.

571481064939 is a deficient number, since it is larger than the sum of its proper divisors (190493688317).

571481064939 is a wasteful number, since it uses less digits than its factorization.

571481064939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190493688316.

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 571481064939 in words is "five hundred seventy-one billion, four hundred eighty-one million, sixty-four thousand, nine hundred thirty-nine".