4394652564949 has 2 divisors, whose sum is σ = 4394652564950. Its totient is φ = 4394652564948.

The previous prime is 4394652564889. The next prime is 4394652564979. The reversal of 4394652564949 is 9494652564934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4045468482225 + 349184082724 = 2011335^2 + 590918^2 .

It is a cyclic number.

It is not a de Polignac number, because 4394652564949 - 2¹⁷ = 4394652433877 is a prime.

It is a super-2 number, since 2×4394652564949² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4394652564979) 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, 2197326282474 + 2197326282475.

It is an arithmetic number, because the mean of its divisors is an integer number (2197326282475).

Almost surely, 2^{4394652564949} is an apocalyptic number.

It is an amenable number.

4394652564949 is a deficient number, since it is larger than the sum of its proper divisors (1).

4394652564949 is an equidigital number, since it uses as much as digits as its factorization.

4394652564949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1007769600, while the sum is 70.

The spelling of 4394652564949 in words is "four trillion, three hundred ninety-four billion, six hundred fifty-two million, five hundred sixty-four thousand, nine hundred forty-nine".