61708685311 has 8 divisors (see below), whose sum is σ = 75949151264. Its totient is φ = 48824454240.

The previous prime is 61708685299. The next prime is 61708685327. The reversal of 61708685311 is 11358680716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61708685311 - 2¹¹ = 61708683263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61708685351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339058620 + ... + 339058801.

It is an arithmetic number, because the mean of its divisors is an integer number (9493643908).

Almost surely, 2^61708685311 is an apocalyptic number.

61708685311 is a deficient number, since it is larger than the sum of its proper divisors (14240465953).

61708685311 is a wasteful number, since it uses less digits than its factorization.

61708685311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678117441.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 61708685311 in words is "sixty-one billion, seven hundred eight million, six hundred eighty-five thousand, three hundred eleven".