521734460334056 has 16 divisors (see below), whose sum is σ = 978325451066400. Its totient is φ = 260847673383024.

The previous prime is 521734460334019. The next prime is 521734460334067. The reversal of 521734460334056 is 650433064437125.

It is a super-2 number, since 2×521734460334056² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 521734460333989 and 521734460334007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2444484620 + ... + 2444698043.

It is an arithmetic number, because the mean of its divisors is an integer number (61145340691650).

Almost surely, 2^{521734460334056} is an apocalyptic number.

It is an amenable number.

521734460334056 is a deficient number, since it is larger than the sum of its proper divisors (456590990732344).

521734460334056 is a wasteful number, since it uses less digits than its factorization.

521734460334056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4889196008 (or 4889196004 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 53.

The spelling of 521734460334056 in words is "five hundred twenty-one trillion, seven hundred thirty-four billion, four hundred sixty million, three hundred thirty-four thousand, fifty-six".