524120021389 has 2 divisors, whose sum is σ = 524120021390. Its totient is φ = 524120021388.

The previous prime is 524120021351. The next prime is 524120021441. The reversal of 524120021389 is 983120021425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 518335202025 + 5784819364 = 719955^2 + 76058^2 .

It is a cyclic number.

It is not a de Polignac number, because 524120021389 - 2⁷ = 524120021261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (524120028389) 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 as a sum of consecutive naturals, namely, 262060010694 + 262060010695.

It is an arithmetic number, because the mean of its divisors is an integer number (262060010695).

Almost surely, 2^524120021389 is an apocalyptic number.

It is an amenable number.

524120021389 is a deficient number, since it is larger than the sum of its proper divisors (1).

524120021389 is an equidigital number, since it uses as much as digits as its factorization.

524120021389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 524120021389 in words is "five hundred twenty-four billion, one hundred twenty million, twenty-one thousand, three hundred eighty-nine".