61317061075 has 12 divisors (see below), whose sum is σ = 77887624248. Its totient is φ = 47857217600.

The previous prime is 61317061063. The next prime is 61317061123. The reversal of 61317061075 is 57016071316.

It is not a de Polignac number, because 61317061075 - 2²⁷ = 61182843347 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29909737 + ... + 29911786.

It is an arithmetic number, because the mean of its divisors is an integer number (6490635354).

Almost surely, 2^61317061075 is an apocalyptic number.

61317061075 is a deficient number, since it is larger than the sum of its proper divisors (16570563173).

61317061075 is a wasteful number, since it uses less digits than its factorization.

61317061075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59821574 (or 59821569 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 37.

The spelling of 61317061075 in words is "sixty-one billion, three hundred seventeen million, sixty-one thousand, seventy-five".