64294249249 has 2 divisors, whose sum is σ = 64294249250. Its totient is φ = 64294249248.

The previous prime is 64294249223. The next prime is 64294249319. The reversal of 64294249249 is 94294249246.

64294249249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54975243024 + 9319006225 = 234468^2 + 96535^2 .

It is a cyclic number.

It is not a de Polignac number, because 64294249249 - 2¹¹ = 64294247201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64294249249.

It is not a weakly prime, because it can be changed into another prime (64294249219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32147124624 + 32147124625.

It is an arithmetic number, because the mean of its divisors is an integer number (32147124625).

Almost surely, 2^64294249249 is an apocalyptic number.

It is an amenable number.

64294249249 is a deficient number, since it is larger than the sum of its proper divisors (1).

64294249249 is an equidigital number, since it uses as much as digits as its factorization.

64294249249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8957952, while the sum is 55.

The spelling of 64294249249 in words is "sixty-four billion, two hundred ninety-four million, two hundred forty-nine thousand, two hundred forty-nine".