521286130539 has 12 divisors (see below), whose sum is σ = 752976358056. Its totient is φ = 347520624192.

The previous prime is 521286130523. The next prime is 521286130583. The reversal of 521286130539 is 935031682125.

521286130539 is a `hidden beast` number, since 5 + 2 + 1 + 2 + 86 + 1 + 30 + 539 = 666.

It is not a de Polignac number, because 521286130539 - 2⁴ = 521286130523 is a prime.

It is a super-3 number, since 3×521286130539³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 521286130494 and 521286130503.

It is not an unprimeable number, because it can be changed into a prime (521286130039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 940227 + ... + 1388019.

It is an arithmetic number, because the mean of its divisors is an integer number (62748029838).

Almost surely, 2^521286130539 is an apocalyptic number.

521286130539 is a deficient number, since it is larger than the sum of its proper divisors (231690227517).

521286130539 is a wasteful number, since it uses less digits than its factorization.

521286130539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577146 (or 577143 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 521286130539 in words is "five hundred twenty-one billion, two hundred eighty-six million, one hundred thirty thousand, five hundred thirty-nine".