61726222082 has 18 divisors (see below), whose sum is σ = 107710250697. Its totient is φ = 26453041104.

The previous prime is 61726222081. The next prime is 61726222087. The reversal of 61726222082 is 28022262716.

It can be written as a sum of positive squares in 2 ways, for example, as 58908629521 + 2817592561 = 242711^2 + 53081^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=175679.

It is not an unprimeable number, because it can be changed into a prime (61726222081) 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 in 8 ways as a sum of consecutive naturals, for example, 2446958 + ... + 2472054.

Almost surely, 2^61726222082 is an apocalyptic number.

61726222082 is a deficient number, since it is larger than the sum of its proper divisors (45984028615).

61726222082 is an frugal number, since it uses more digits than its factorization.

61726222082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50210 (or 25106 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

Adding to 61726222082 its reverse (28022262716), we get a palindrome (89748484798).

The spelling of 61726222082 in words is "sixty-one billion, seven hundred twenty-six million, two hundred twenty-two thousand, eighty-two".