830710465561 has 2 divisors, whose sum is σ = 830710465562. Its totient is φ = 830710465560.

The previous prime is 830710465549. The next prime is 830710465603. The reversal of 830710465561 is 165564017038.

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., 548701673536 + 282008792025 = 740744^2 + 531045^2 .

It is a cyclic number.

It is not a de Polignac number, because 830710465561 - 2⁹ = 830710465049 is a prime.

It is not a weakly prime, because it can be changed into another prime (830710465961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415355232780 + 415355232781.

It is an arithmetic number, because the mean of its divisors is an integer number (415355232781).

Almost surely, 2^830710465561 is an apocalyptic number.

It is an amenable number.

830710465561 is a deficient number, since it is larger than the sum of its proper divisors (1).

830710465561 is an equidigital number, since it uses as much as digits as its factorization.

830710465561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 830710465561 in words is "eight hundred thirty billion, seven hundred ten million, four hundred sixty-five thousand, five hundred sixty-one".