64403021192093 has 2 divisors, whose sum is σ = 64403021192094. Its totient is φ = 64403021192092.

The previous prime is 64403021192087. The next prime is 64403021192113. The reversal of 64403021192093 is 39029112030446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48506238188164 + 15896783003929 = 6964642^2 + 3987077^2 .

It is a cyclic number.

It is not a de Polignac number, because 64403021192093 - 2¹² = 64403021187997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64403021192053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32201510596046 + 32201510596047.

It is an arithmetic number, because the mean of its divisors is an integer number (32201510596047).

Almost surely, 2^{64403021192093} is an apocalyptic number.

It is an amenable number.

64403021192093 is a deficient number, since it is larger than the sum of its proper divisors (1).

64403021192093 is an equidigital number, since it uses as much as digits as its factorization.

64403021192093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 44.

The spelling of 64403021192093 in words is "sixty-four trillion, four hundred three billion, twenty-one million, one hundred ninety-two thousand, ninety-three".