520401326267 has 4 divisors (see below), whose sum is σ = 537188465856. Its totient is φ = 503614186680.

The previous prime is 520401326231. The next prime is 520401326281. The reversal of 520401326267 is 762623104025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 520401326267 - 2³⁰ = 519327584443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520401326267.

It is not an unprimeable number, because it can be changed into a prime (520401376267) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8393569748 + ... + 8393569809.

It is an arithmetic number, because the mean of its divisors is an integer number (134297116464).

Almost surely, 2^520401326267 is an apocalyptic number.

520401326267 is a deficient number, since it is larger than the sum of its proper divisors (16787139589).

520401326267 is a wasteful number, since it uses less digits than its factorization.

520401326267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16787139588.

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 520401326267 in words is "five hundred twenty billion, four hundred one million, three hundred twenty-six thousand, two hundred sixty-seven".