64571874134819 has 2 divisors, whose sum is σ = 64571874134820. Its totient is φ = 64571874134818.

The previous prime is 64571874134749. The next prime is 64571874134851. The reversal of 64571874134819 is 91843147817546.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64571874134819 - 2⁸ = 64571874134563 is a prime.

It is a super-2 number, since 2×64571874134819² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64571874134869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32285937067409 + 32285937067410.

It is an arithmetic number, because the mean of its divisors is an integer number (32285937067410).

Almost surely, 2^{64571874134819} is an apocalyptic number.

64571874134819 is a deficient number, since it is larger than the sum of its proper divisors (1).

64571874134819 is an equidigital number, since it uses as much as digits as its factorization.

64571874134819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162570240, while the sum is 68.

The spelling of 64571874134819 in words is "sixty-four trillion, five hundred seventy-one billion, eight hundred seventy-four million, one hundred thirty-four thousand, eight hundred nineteen".