520400544246 has 24 divisors (see below), whose sum is σ = 1230037650504. Its totient is φ = 157697134560.

The previous prime is 520400544233. The next prime is 520400544269. The reversal of 520400544246 is 642445004025.

520400544246 is a `hidden beast` number, since 5 + 2 + 0 + 400 + 5 + 4 + 4 + 246 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 520400544246.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1314142591 + ... + 1314142986.

It is an arithmetic number, because the mean of its divisors is an integer number (51251568771).

Almost surely, 2^520400544246 is an apocalyptic number.

520400544246 is an abundant number, since it is smaller than the sum of its proper divisors (709637106258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520400544246 is a wasteful number, since it uses less digits than its factorization.

520400544246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628285596 (or 2628285593 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

The spelling of 520400544246 in words is "five hundred twenty billion, four hundred million, five hundred forty-four thousand, two hundred forty-six".