61711306312 has 16 divisors (see below), whose sum is σ = 115712183340. Its totient is φ = 30854724096.

The previous prime is 61711306301. The next prime is 61711306343. The reversal of 61711306312 is 21360311716.

It can be written as a sum of positive squares in 2 ways, for example, as 57568324356 + 4142981956 = 239934^2 + 64366^2 .

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 3 ways as a sum of consecutive naturals, for example, 225168 + ... + 417280.

Almost surely, 2^61711306312 is an apocalyptic number.

It is an amenable number.

61711306312 is a deficient number, since it is larger than the sum of its proper divisors (54000877028).

61711306312 is a wasteful number, since it uses less digits than its factorization.

61711306312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232272 (or 232268 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The spelling of 61711306312 in words is "sixty-one billion, seven hundred eleven million, three hundred six thousand, three hundred twelve".