64809000337 has 2 divisors, whose sum is σ = 64809000338. Its totient is φ = 64809000336.

The previous prime is 64809000301. The next prime is 64809000349. The reversal of 64809000337 is 73300090846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32405760256 + 32403240081 = 180016^2 + 180009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64809000337 is a prime.

It is a super-2 number, since 2×64809000337² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64809000337.

It is not a weakly prime, because it can be changed into another prime (64809000367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32404500168 + 32404500169.

It is an arithmetic number, because the mean of its divisors is an integer number (32404500169).

Almost surely, 2^64809000337 is an apocalyptic number.

It is an amenable number.

64809000337 is a deficient number, since it is larger than the sum of its proper divisors (1).

64809000337 is an equidigital number, since it uses as much as digits as its factorization.

64809000337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 64809000337 in words is "sixty-four billion, eight hundred nine million, three hundred thirty-seven", and thus it is an aban number.