64228622302891 has 2 divisors, whose sum is σ = 64228622302892. Its totient is φ = 64228622302890.

The previous prime is 64228622302813. The next prime is 64228622302909. The reversal of 64228622302891 is 19820322682246.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64228622302891 - 2²⁵ = 64228588748459 is a prime.

It is not a weakly prime, because it can be changed into another prime (64228622302811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32114311151445 + 32114311151446.

It is an arithmetic number, because the mean of its divisors is an integer number (32114311151446).

Almost surely, 2^{64228622302891} is an apocalyptic number.

64228622302891 is a deficient number, since it is larger than the sum of its proper divisors (1).

64228622302891 is an equidigital number, since it uses as much as digits as its factorization.

64228622302891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7962624, while the sum is 55.

It can be divided in two parts, 6422862 and 2302891, that added together give a triangular number (8725753 = T₄₁₇₇).

The spelling of 64228622302891 in words is "sixty-four trillion, two hundred twenty-eight billion, six hundred twenty-two million, three hundred two thousand, eight hundred ninety-one".