520972862563364 has 6 divisors (see below), whose sum is σ = 911702509485894. Its totient is φ = 260486431281680.

The previous prime is 520972862563337. The next prime is 520972862563397. The reversal of 520972862563364 is 463365268279025.

It can be written as a sum of positive squares in only one way, i.e., 516660628228900 + 4312234334464 = 22730170^2 + 2076592^2 .

It is a junction number, because it is equal to n+sod(n) for n = 520972862563294 and 520972862563303.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65121607820417 + ... + 65121607820424.

It is an arithmetic number, because the mean of its divisors is an integer number (151950418247649).

Almost surely, 2^{520972862563364} is an apocalyptic number.

It is an amenable number.

520972862563364 is a deficient number, since it is larger than the sum of its proper divisors (390729646922530).

520972862563364 is a wasteful number, since it uses less digits than its factorization.

520972862563364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130243215640845 (or 130243215640843 counting only the distinct ones).

The product of its (nonzero) digits is 783820800, while the sum is 68.

The spelling of 520972862563364 in words is "five hundred twenty trillion, nine hundred seventy-two billion, eight hundred sixty-two million, five hundred sixty-three thousand, three hundred sixty-four".