64210599935969 has 2 divisors, whose sum is σ = 64210599935970. Its totient is φ = 64210599935968.

The previous prime is 64210599935947. The next prime is 64210599935983. The reversal of 64210599935969 is 96953999501246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63883173363025 + 327426572944 = 7992695^2 + 572212^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64210599935969 is a prime.

It is a super-2 number, since 2×64210599935969² (a number of 28 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 64210599935969.

It is not a weakly prime, because it can be changed into another prime (64210599935939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32105299967984 + 32105299967985.

It is an arithmetic number, because the mean of its divisors is an integer number (32105299967985).

Almost surely, 2^{64210599935969} is an apocalyptic number.

It is an amenable number.

64210599935969 is a deficient number, since it is larger than the sum of its proper divisors (1).

64210599935969 is an equidigital number, since it uses as much as digits as its factorization.

64210599935969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1275458400, while the sum is 77.

The spelling of 64210599935969 in words is "sixty-four trillion, two hundred ten billion, five hundred ninety-nine million, nine hundred thirty-five thousand, nine hundred sixty-nine".