42853120612649 has 2 divisors, whose sum is σ = 42853120612650. Its totient is φ = 42853120612648.

The previous prime is 42853120612619. The next prime is 42853120612657. The reversal of 42853120612649 is 94621602135824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25229202945424 + 17623917667225 = 5022868^2 + 4198085^2 .

It is a cyclic number.

It is not a de Polignac number, because 42853120612649 - 2¹² = 42853120608553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42853120612649.

It is not a weakly prime, because it can be changed into another prime (42853120612619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21426560306324 + 21426560306325.

It is an arithmetic number, because the mean of its divisors is an integer number (21426560306325).

Almost surely, 2^{42853120612649} is an apocalyptic number.

It is an amenable number.

42853120612649 is a deficient number, since it is larger than the sum of its proper divisors (1).

42853120612649 is an equidigital number, since it uses as much as digits as its factorization.

42853120612649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4976640, while the sum is 53.

The spelling of 42853120612649 in words is "forty-two trillion, eight hundred fifty-three billion, one hundred twenty million, six hundred twelve thousand, six hundred forty-nine".