521728834114 has 8 divisors (see below), whose sum is σ = 784336221900. Its totient is φ = 260283426816.

The previous prime is 521728834111. The next prime is 521728834117. The reversal of 521728834114 is 411438827125.

It is an interprime number because it is at equal distance from previous prime (521728834111) and next prime (521728834117).

It can be written as a sum of positive squares in 2 ways, for example, as 483768936225 + 37959897889 = 695535^2 + 194833^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (521728834111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290493999 + ... + 290495794.

Almost surely, 2^521728834114 is an apocalyptic number.

521728834114 is a deficient number, since it is larger than the sum of its proper divisors (262607387786).

521728834114 is a wasteful number, since it uses less digits than its factorization.

521728834114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580990244.

The product of its digits is 430080, while the sum is 46.

The spelling of 521728834114 in words is "five hundred twenty-one billion, seven hundred twenty-eight million, eight hundred thirty-four thousand, one hundred fourteen".