61705361117 has 16 divisors (see below), whose sum is σ = 64975841280. Its totient is φ = 58513963200.

The previous prime is 61705361111. The next prime is 61705361129. The reversal of 61705361117 is 71116350716.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 61705361117 - 2⁸ = 61705360861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61705361111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1182692 + ... + 1233762.

It is an arithmetic number, because the mean of its divisors is an integer number (4060990080).

Almost surely, 2^61705361117 is an apocalyptic number.

It is an amenable number.

61705361117 is a deficient number, since it is larger than the sum of its proper divisors (3270480163).

61705361117 is a wasteful number, since it uses less digits than its factorization.

61705361117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51844.

The product of its (nonzero) digits is 26460, while the sum is 38.

The spelling of 61705361117 in words is "sixty-one billion, seven hundred five million, three hundred sixty-one thousand, one hundred seventeen".