500111415453857 has 2 divisors, whose sum is σ = 500111415453858. Its totient is φ = 500111415453856.

The previous prime is 500111415453821. The next prime is 500111415453913. The reversal of 500111415453857 is 758354514111005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 295060356737041 + 205051058716816 = 17177321^2 + 14319604^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500111415453857 is a prime.

It is a super-2 number, since 2×500111415453857² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (500111415453757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250055707726928 + 250055707726929.

It is an arithmetic number, because the mean of its divisors is an integer number (250055707726929).

Almost surely, 2^{500111415453857} is an apocalyptic number.

It is an amenable number.

500111415453857 is a deficient number, since it is larger than the sum of its proper divisors (1).

500111415453857 is an equidigital number, since it uses as much as digits as its factorization.

500111415453857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680000, while the sum is 50.

The spelling of 500111415453857 in words is "five hundred trillion, one hundred eleven billion, four hundred fifteen million, four hundred fifty-three thousand, eight hundred fifty-seven".