3520643153249 has 2 divisors, whose sum is σ = 3520643153250. Its totient is φ = 3520643153248.

The previous prime is 3520643153243. The next prime is 3520643153317. The reversal of 3520643153249 is 9423513460253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2304530452624 + 1216112700625 = 1518068^2 + 1102775^2 .

It is a cyclic number.

It is not a de Polignac number, because 3520643153249 - 2⁸ = 3520643152993 is a prime.

It is not a weakly prime, because it can be changed into another prime (3520643153243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1760321576624 + 1760321576625.

It is an arithmetic number, because the mean of its divisors is an integer number (1760321576625).

Almost surely, 2^{3520643153249} is an apocalyptic number.

It is an amenable number.

3520643153249 is a deficient number, since it is larger than the sum of its proper divisors (1).

3520643153249 is an equidigital number, since it uses as much as digits as its factorization.

3520643153249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2332800, while the sum is 47.

The spelling of 3520643153249 in words is "three trillion, five hundred twenty billion, six hundred forty-three million, one hundred fifty-three thousand, two hundred forty-nine".