64811682815063 has 2 divisors, whose sum is σ = 64811682815064. Its totient is φ = 64811682815062.

The previous prime is 64811682815051. The next prime is 64811682815069. The reversal of 64811682815063 is 36051828611846.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64811682815063 - 2⁸ = 64811682814807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64811682814993 and 64811682815011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64811682815069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32405841407531 + 32405841407532.

It is an arithmetic number, because the mean of its divisors is an integer number (32405841407532).

Almost surely, 2^{64811682815063} is an apocalyptic number.

64811682815063 is a deficient number, since it is larger than the sum of its proper divisors (1).

64811682815063 is an equidigital number, since it uses as much as digits as its factorization.

64811682815063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13271040, while the sum is 59.

The spelling of 64811682815063 in words is "sixty-four trillion, eight hundred eleven billion, six hundred eighty-two million, eight hundred fifteen thousand, sixty-three".