61641273282 has 16 divisors (see below), whose sum is σ = 123524758080. Its totient is φ = 20506722512.

The previous prime is 61641273271. The next prime is 61641273299. The reversal of 61641273282 is 28237214616.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10088838 + ... + 10094945.

It is an arithmetic number, because the mean of its divisors is an integer number (7720297380).

Almost surely, 2^61641273282 is an apocalyptic number.

61641273282 is an abundant number, since it is smaller than the sum of its proper divisors (61883484798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61641273282 is a wasteful number, since it uses less digits than its factorization.

61641273282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20184297.

The product of its digits is 193536, while the sum is 42.

Adding to 61641273282 its reverse (28237214616), we get a palindrome (89878487898).

The spelling of 61641273282 in words is "sixty-one billion, six hundred forty-one million, two hundred seventy-three thousand, two hundred eighty-two".