520671731234 has 16 divisors (see below), whose sum is σ = 814982902272. Its totient is φ = 249011276448.

The previous prime is 520671731191. The next prime is 520671731297. The reversal of 520671731234 is 432137176025.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 520671731191 and 520671731200.

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 7 ways as a sum of consecutive naturals, for example, 2509007 + ... + 2708589.

It is an arithmetic number, because the mean of its divisors is an integer number (50936431392).

Almost surely, 2^520671731234 is an apocalyptic number.

520671731234 is a deficient number, since it is larger than the sum of its proper divisors (294311171038).

520671731234 is a wasteful number, since it uses less digits than its factorization.

520671731234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256321.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 520671731234 in words is "five hundred twenty billion, six hundred seventy-one million, seven hundred thirty-one thousand, two hundred thirty-four".