521827351260085 has 32 divisors (see below), whose sum is σ = 684432488057472. Its totient is φ = 379594677369600.

The previous prime is 521827351260043. The next prime is 521827351260097. The reversal of 521827351260085 is 580062153728125.

It is not a de Polignac number, because 521827351260085 - 2³⁵ = 521792991521717 is a prime.

It is a super-2 number, since 2×521827351260085² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 580730167 + ... + 581628043.

It is an arithmetic number, because the mean of its divisors is an integer number (21388515251796).

Almost surely, 2^{521827351260085} is an apocalyptic number.

It is an amenable number.

521827351260085 is a deficient number, since it is larger than the sum of its proper divisors (162605136797387).

521827351260085 is a wasteful number, since it uses less digits than its factorization.

521827351260085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031413.

The product of its (nonzero) digits is 8064000, while the sum is 55.

The spelling of 521827351260085 in words is "five hundred twenty-one trillion, eight hundred twenty-seven billion, three hundred fifty-one million, two hundred sixty thousand, eighty-five".