501568422413 has 2 divisors, whose sum is σ = 501568422414. Its totient is φ = 501568422412.

The previous prime is 501568422371. The next prime is 501568422479. The reversal of 501568422413 is 314224865105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 501373037929 + 195384484 = 708077^2 + 13978^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501568422413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501568422493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250784211206 + 250784211207.

It is an arithmetic number, because the mean of its divisors is an integer number (250784211207).

Almost surely, 2^501568422413 is an apocalyptic number.

It is an amenable number.

501568422413 is a deficient number, since it is larger than the sum of its proper divisors (1).

501568422413 is an equidigital number, since it uses as much as digits as its factorization.

501568422413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 501568422413 in words is "five hundred one billion, five hundred sixty-eight million, four hundred twenty-two thousand, four hundred thirteen".