840949484533 has 2 divisors, whose sum is σ = 840949484534. Its totient is φ = 840949484532.

The previous prime is 840949484521. The next prime is 840949484549. The reversal of 840949484533 is 335484949048.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 719718083044 + 121231401489 = 848362^2 + 348183^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-840949484533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (840949484033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420474742266 + 420474742267.

It is an arithmetic number, because the mean of its divisors is an integer number (420474742267).

Almost surely, 2^840949484533 is an apocalyptic number.

It is an amenable number.

840949484533 is a deficient number, since it is larger than the sum of its proper divisors (1).

840949484533 is an equidigital number, since it uses as much as digits as its factorization.

840949484533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 59719680, while the sum is 61.

The spelling of 840949484533 in words is "eight hundred forty billion, nine hundred forty-nine million, four hundred eighty-four thousand, five hundred thirty-three".