64830806288081 has 2 divisors, whose sum is σ = 64830806288082. Its totient is φ = 64830806288080.

The previous prime is 64830806288021. The next prime is 64830806288089. The reversal of 64830806288081 is 18088260803846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54225786081856 + 10605020206225 = 7363816^2 + 3256535^2 .

It is a cyclic number.

It is not a de Polignac number, because 64830806288081 - 2³⁸ = 64555928381137 is a prime.

It is a super-2 number, since 2×64830806288081² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64830806288089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32415403144040 + 32415403144041.

It is an arithmetic number, because the mean of its divisors is an integer number (32415403144041).

Almost surely, 2^{64830806288081} is an apocalyptic number.

It is an amenable number.

64830806288081 is a deficient number, since it is larger than the sum of its proper divisors (1).

64830806288081 is an equidigital number, since it uses as much as digits as its factorization.

64830806288081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28311552, while the sum is 62.

The spelling of 64830806288081 in words is "sixty-four trillion, eight hundred thirty billion, eight hundred six million, two hundred eighty-eight thousand, eighty-one".