578058379781 has 2 divisors, whose sum is σ = 578058379782. Its totient is φ = 578058379780.

The previous prime is 578058379739. The next prime is 578058379817. The reversal of 578058379781 is 187973850875.

Together with next prime (578058379817) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 569096728225 + 8961651556 = 754385^2 + 94666^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-578058379781 is a prime.

It is a super-2 number, since 2×578058379781² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (578058379721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289029189890 + 289029189891.

It is an arithmetic number, because the mean of its divisors is an integer number (289029189891).

Almost surely, 2^578058379781 is an apocalyptic number.

It is an amenable number.

578058379781 is a deficient number, since it is larger than the sum of its proper divisors (1).

578058379781 is an equidigital number, since it uses as much as digits as its factorization.

578058379781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 118540800, while the sum is 68.

The spelling of 578058379781 in words is "five hundred seventy-eight billion, fifty-eight million, three hundred seventy-nine thousand, seven hundred eighty-one".