842510093549 has 2 divisors, whose sum is σ = 842510093550. Its totient is φ = 842510093548.

The previous prime is 842510093501. The next prime is 842510093599. The reversal of 842510093549 is 945390015248.

It is an a-pointer prime, because the next prime (842510093599) can be obtained adding 842510093549 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 643353180649 + 199156912900 = 802093^2 + 446270^2 .

It is a cyclic number.

It is not a de Polignac number, because 842510093549 - 2³⁶ = 773790616813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 842510093497 and 842510093506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (842510093599) 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, 421255046774 + 421255046775.

It is an arithmetic number, because the mean of its divisors is an integer number (421255046775).

Almost surely, 2^842510093549 is an apocalyptic number.

It is an amenable number.

842510093549 is a deficient number, since it is larger than the sum of its proper divisors (1).

842510093549 is an equidigital number, since it uses as much as digits as its factorization.

842510093549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 842510093549 in words is "eight hundred forty-two billion, five hundred ten million, ninety-three thousand, five hundred forty-nine".