61546442265089 has 2 divisors, whose sum is σ = 61546442265090. Its totient is φ = 61546442265088.

The previous prime is 61546442265083. The next prime is 61546442265109. The reversal of 61546442265089 is 98056224464516.

61546442265089 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., 61088417864464 + 458024400625 = 7815908^2 + 676775^2 .

It is a cyclic number.

It is not a de Polignac number, because 61546442265089 - 2¹⁶ = 61546442199553 is a prime.

It is not a weakly prime, because it can be changed into another prime (61546442265083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30773221132544 + 30773221132545.

It is an arithmetic number, because the mean of its divisors is an integer number (30773221132545).

Almost surely, 2^{61546442265089} is an apocalyptic number.

It is an amenable number.

61546442265089 is a deficient number, since it is larger than the sum of its proper divisors (1).

61546442265089 is an equidigital number, since it uses as much as digits as its factorization.

61546442265089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 99532800, while the sum is 62.

The spelling of 61546442265089 in words is "sixty-one trillion, five hundred forty-six billion, four hundred forty-two million, two hundred sixty-five thousand, eighty-nine".