521712512341070 has 64 divisors (see below), whose sum is σ = 978568140718080. Its totient is φ = 200039232182400.

The previous prime is 521712512341003. The next prime is 521712512341117. The reversal of 521712512341070 is 70143215217125.

It is a super-2 number, since 2×521712512341070² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108166979 + ... + 112887201.

It is an arithmetic number, because the mean of its divisors is an integer number (15290127198720).

Almost surely, 2^{521712512341070} is an apocalyptic number.

521712512341070 is a deficient number, since it is larger than the sum of its proper divisors (456855628377010).

521712512341070 is a wasteful number, since it uses less digits than its factorization.

521712512341070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4723641.

The product of its (nonzero) digits is 117600, while the sum is 41.

Adding to 521712512341070 its reverse (70143215217125), we get a palindrome (591855727558195).

The spelling of 521712512341070 in words is "five hundred twenty-one trillion, seven hundred twelve billion, five hundred twelve million, three hundred forty-one thousand, seventy".