846826036561 has 2 divisors, whose sum is σ = 846826036562. Its totient is φ = 846826036560.

The previous prime is 846826036541. The next prime is 846826036621. The reversal of 846826036561 is 165630628648.

846826036561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 825299571600 + 21526464961 = 908460^2 + 146719^2 .

It is a cyclic number.

It is not a de Polignac number, because 846826036561 - 2¹⁷ = 846825905489 is a prime.

It is a super-2 number, since 2×846826036561² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (846826036541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423413018280 + 423413018281.

It is an arithmetic number, because the mean of its divisors is an integer number (423413018281).

Almost surely, 2^846826036561 is an apocalyptic number.

It is an amenable number.

846826036561 is a deficient number, since it is larger than the sum of its proper divisors (1).

846826036561 is an equidigital number, since it uses as much as digits as its factorization.

846826036561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9953280, while the sum is 55.

The spelling of 846826036561 in words is "eight hundred forty-six billion, eight hundred twenty-six million, thirty-six thousand, five hundred sixty-one".