520782221954 has 8 divisors (see below), whose sum is σ = 781210350480. Its totient is φ = 260378771796.

The previous prime is 520782221941. The next prime is 520782221957. The reversal of 520782221954 is 459122287025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 520782221899 and 520782221908.

It is not an unprimeable number, because it can be changed into a prime (520782221957) 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, 6116744 + ... + 6201299.

It is an arithmetic number, because the mean of its divisors is an integer number (97651293810).

Almost surely, 2^520782221954 is an apocalyptic number.

520782221954 is a deficient number, since it is larger than the sum of its proper divisors (260428128526).

520782221954 is a wasteful number, since it uses less digits than its factorization.

520782221954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12339184.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 520782221954 in words is "five hundred twenty billion, seven hundred eighty-two million, two hundred twenty-one thousand, nine hundred fifty-four".