64046821621183 has 2 divisors, whose sum is σ = 64046821621184. Its totient is φ = 64046821621182.

The previous prime is 64046821621163. The next prime is 64046821621213. The reversal of 64046821621183 is 38112612864046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64046821621183 - 2⁹ = 64046821620671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64046821621183.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64046821621163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32023410810591 + 32023410810592.

It is an arithmetic number, because the mean of its divisors is an integer number (32023410810592).

Almost surely, 2^{64046821621183} is an apocalyptic number.

64046821621183 is a deficient number, since it is larger than the sum of its proper divisors (1).

64046821621183 is an equidigital number, since it uses as much as digits as its factorization.

64046821621183 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2654208, while the sum is 52.

The spelling of 64046821621183 in words is "sixty-four trillion, forty-six billion, eight hundred twenty-one million, six hundred twenty-one thousand, one hundred eighty-three".