507338506681 has 2 divisors, whose sum is σ = 507338506682. Its totient is φ = 507338506680.

The previous prime is 507338506637. The next prime is 507338506687. The reversal of 507338506681 is 186605833705.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 503305113600 + 4033393081 = 709440^2 + 63509^2 .

It is a cyclic number.

It is not a de Polignac number, because 507338506681 - 2¹³ = 507338498489 is a prime.

It is a super-2 number, since 2×507338506681² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (507338506687) 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, 253669253340 + 253669253341.

It is an arithmetic number, because the mean of its divisors is an integer number (253669253341).

Almost surely, 2^507338506681 is an apocalyptic number.

It is an amenable number.

507338506681 is a deficient number, since it is larger than the sum of its proper divisors (1).

507338506681 is an equidigital number, since it uses as much as digits as its factorization.

507338506681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 507338506681 in words is "five hundred seven billion, three hundred thirty-eight million, five hundred six thousand, six hundred eighty-one".