512886601135891 has 2 divisors, whose sum is σ = 512886601135892. Its totient is φ = 512886601135890.

The previous prime is 512886601135859. The next prime is 512886601135897. The reversal of 512886601135891 is 198531106688215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 512886601135891 - 2⁵ = 512886601135859 is a prime.

It is a super-2 number, since 2×512886601135891² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (512886601135897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256443300567945 + 256443300567946.

It is an arithmetic number, because the mean of its divisors is an integer number (256443300567946).

Almost surely, 2^{512886601135891} is an apocalyptic number.

512886601135891 is a deficient number, since it is larger than the sum of its proper divisors (1).

512886601135891 is an equidigital number, since it uses as much as digits as its factorization.

512886601135891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24883200, while the sum is 64.

The spelling of 512886601135891 in words is "five hundred twelve trillion, eight hundred eighty-six billion, six hundred one million, one hundred thirty-five thousand, eight hundred ninety-one".