61085836173 has 12 divisors (see below), whose sum is σ = 82174988480. Its totient is φ = 40363477056.

The previous prime is 61085836169. The next prime is 61085836181. The reversal of 61085836173 is 37163858016.

It is not a de Polignac number, because 61085836173 - 2² = 61085836169 is a prime.

It is a super-3 number, since 3×61085836173³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61085836103) 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 11 ways as a sum of consecutive naturals, for example, 759013 + ... + 835626.

Almost surely, 2^61085836173 is an apocalyptic number.

It is an amenable number.

61085836173 is a deficient number, since it is larger than the sum of its proper divisors (21089152307).

61085836173 is a wasteful number, since it uses less digits than its factorization.

61085836173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594868 (or 1594755 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 61085836173 in words is "sixty-one billion, eighty-five million, eight hundred thirty-six thousand, one hundred seventy-three".