61147411573194 has 96 divisors (see below), whose sum is σ = 138700283904000. Its totient is φ = 19432324273824.

The previous prime is 61147411573117. The next prime is 61147411573229. The reversal of 61147411573194 is 49137511474116.

It is a happy number.

61147411573194 is a `hidden beast` number, since 6 + 1 + 1 + 47 + 4 + 11 + 573 + 19 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 61147411573194.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 237555807 + ... + 237813069.

It is an arithmetic number, because the mean of its divisors is an integer number (1444794624000).

Almost surely, 2^{61147411573194} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61147411573194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69350141952000).

61147411573194 is an abundant number, since it is smaller than the sum of its proper divisors (77552872330806).

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

61147411573194 is a wasteful number, since it uses less digits than its factorization.

61147411573194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259176 (or 259173 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The spelling of 61147411573194 in words is "sixty-one trillion, one hundred forty-seven billion, four hundred eleven million, five hundred seventy-three thousand, one hundred ninety-four".