61058717356 has 96 divisors (see below), whose sum is σ = 134312653440. Its totient is φ = 23645952000.

The previous prime is 61058717339. The next prime is 61058717359. The reversal of 61058717356 is 65371785016.

61058717356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61058717359) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3262666 + ... + 3281326.

It is an arithmetic number, because the mean of its divisors is an integer number (1399090140).

Almost surely, 2^61058717356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61058717356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67156326720).

61058717356 is an abundant number, since it is smaller than the sum of its proper divisors (73253936084).

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

61058717356 is a wasteful number, since it uses less digits than its factorization.

61058717356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18875 (or 18873 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 49.

The spelling of 61058717356 in words is "sixty-one billion, fifty-eight million, seven hundred seventeen thousand, three hundred fifty-six".